From 146e7ca4b15f82f3cffc8c802229f22cedb08838 Mon Sep 17 00:00:00 2001
From: IoTgod <i@IoTgod.me>
Date: Sun, 24 Feb 2019 23:31:01 +0800
Subject: [PATCH] change code style

---
 .../LoveKKComment/.idea/LoveKKComment.iml     |    8 +
 .../plugins/LoveKKComment/.idea/encodings.xml |    4 +
 .../plugins/LoveKKComment/.idea/modules.xml   |    8 +
 .../usr/plugins/LoveKKComment/.idea/php.xml   |    8 +
 .../plugins/LoveKKComment/.idea/workspace.xml |  333 ++
 .../usr/plugins/LoveKKComment/Action.php      |  513 ++
 .../usr/plugins/LoveKKComment/LICENSE         |   21 +
 .../usr/plugins/LoveKKComment/Plugin.php      |  927 ++++
 .../usr/plugins/LoveKKComment/README.md       |   89 +
 .../plugins/LoveKKComment/lib/Exception.php   |   39 +
 .../usr/plugins/LoveKKComment/lib/OAuth.php   |  138 +
 .../plugins/LoveKKComment/lib/PHPMailer.php   | 4482 +++++++++++++++++
 .../usr/plugins/LoveKKComment/lib/POP3.php    |  419 ++
 .../usr/plugins/LoveKKComment/lib/SMTP.php    | 1326 +++++
 .../plugins/LoveKKComment/theme/approved.html |   18 +
 .../plugins/LoveKKComment/theme/author.html   |   17 +
 .../plugins/LoveKKComment/theme/forget.html   |   60 +
 .../plugins/LoveKKComment/theme/reply.html    |   20 +
 .../assets/css/features/code/custome.min.css  |    7 +-
 .../assets/css/features/code/vs.min.css       |   43 +-
 .../assets/css/features/code/custome.min.css  |    7 +-
 .../assets/css/features/code/vs.min.css       |   43 +-
 22 files changed, 8516 insertions(+), 14 deletions(-)
 create mode 100644 server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/.idea/LoveKKComment.iml
 create mode 100644 server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/.idea/encodings.xml
 create mode 100644 server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/.idea/modules.xml
 create mode 100644 server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/.idea/php.xml
 create mode 100644 server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/.idea/workspace.xml
 create mode 100644 server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/Action.php
 create mode 100644 server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/LICENSE
 create mode 100644 server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/Plugin.php
 create mode 100644 server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/README.md
 create mode 100644 server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/lib/Exception.php
 create mode 100644 server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/lib/OAuth.php
 create mode 100644 server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/lib/PHPMailer.php
 create mode 100644 server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/lib/POP3.php
 create mode 100644 server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/lib/SMTP.php
 create mode 100644 server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/theme/approved.html
 create mode 100644 server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/theme/author.html
 create mode 100644 server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/theme/forget.html
 create mode 100644 server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/theme/reply.html

diff --git a/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/.idea/LoveKKComment.iml b/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/.idea/LoveKKComment.iml
new file mode 100644
index 0000000..c956989
--- /dev/null
+++ b/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/.idea/LoveKKComment.iml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="WEB_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$" />
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/.idea/encodings.xml b/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/.idea/encodings.xml
new file mode 100644
index 0000000..15a15b2
--- /dev/null
+++ b/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/.idea/encodings.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Encoding" addBOMForNewFiles="with NO BOM" />
+</project>
\ No newline at end of file
diff --git a/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/.idea/modules.xml b/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/.idea/modules.xml
new file mode 100644
index 0000000..f8ef5ff
--- /dev/null
+++ b/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/.idea/modules.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/LoveKKComment.iml" filepath="$PROJECT_DIR$/.idea/LoveKKComment.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/.idea/php.xml b/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/.idea/php.xml
new file mode 100644
index 0000000..ae8a2da
--- /dev/null
+++ b/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/.idea/php.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="PhpIncludePathManager">
+    <include_path>
+      <path value="$PROJECT_DIR$/../../../v1.1" />
+    </include_path>
+  </component>
+</project>
\ No newline at end of file
diff --git a/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/.idea/workspace.xml b/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/.idea/workspace.xml
new file mode 100644
index 0000000..222e2ba
--- /dev/null
+++ b/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/.idea/workspace.xml
@@ -0,0 +1,333 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ChangeListManager">
+    <list default="true" id="32f10aeb-a6c7-469b-832d-e86fea59b938" name="默认的" comment="" />
+    <option name="EXCLUDED_CONVERTED_TO_IGNORED" value="true" />
+    <option name="SHOW_DIALOG" value="false" />
+    <option name="HIGHLIGHT_CONFLICTS" value="true" />
+    <option name="HIGHLIGHT_NON_ACTIVE_CHANGELIST" value="false" />
+    <option name="LAST_RESOLUTION" value="IGNORE" />
+  </component>
+  <component name="FileEditorManager">
+    <leaf>
+      <file pinned="false" current-in-tab="false">
+        <entry file="file://$PROJECT_DIR$/Plugin.php">
+          <provider selected="true" editor-type-id="text-editor">
+            <state relative-caret-position="254">
+              <caret line="910" column="31" selection-start-line="910" selection-start-column="31" selection-end-line="910" selection-end-column="31" />
+              <folding>
+                <element signature="e#6#134#0#PHP" expanded="true" />
+              </folding>
+            </state>
+          </provider>
+        </entry>
+      </file>
+      <file pinned="false" current-in-tab="false">
+        <entry file="file://$PROJECT_DIR$/Action.php">
+          <provider selected="true" editor-type-id="text-editor">
+            <state relative-caret-position="-7130">
+              <caret line="212" column="27" selection-start-line="212" selection-start-column="27" selection-end-line="212" selection-end-column="27" />
+            </state>
+          </provider>
+        </entry>
+      </file>
+      <file pinned="false" current-in-tab="true">
+        <entry file="file://$PROJECT_DIR$/README.md">
+          <provider selected="true" editor-type-id="split-provider[text-editor;markdown-preview-editor]">
+            <state split_layout="FIRST">
+              <first_editor relative-caret-position="553">
+                <caret line="60" column="13" selection-start-line="60" selection-start-column="13" selection-end-line="60" selection-end-column="13" />
+              </first_editor>
+              <second_editor />
+            </state>
+          </provider>
+        </entry>
+      </file>
+    </leaf>
+  </component>
+  <component name="FileTemplateManagerImpl">
+    <option name="RECENT_TEMPLATES">
+      <list>
+        <option value="HTML File" />
+      </list>
+    </option>
+  </component>
+  <component name="FindInProjectRecents">
+    <findStrings>
+      <find>smtp_auth</find>
+      <find>OAuth</find>
+      <find>PHPMailer</find>
+      <find>send(</find>
+      <find>_e</find>
+      <find>_e(</find>
+      <find>getServerExtList</find>
+      <find>server_caps</find>
+      <find>hello(</find>
+      <find>Hostname</find>
+      <find>Helo</find>
+      <find>serverHostname</find>
+      <find>begin</find>
+      <find>file_put</find>
+      <find>file_put_contents</find>
+      <find>widgetB</find>
+      <find>Helper::widgetById</find>
+    </findStrings>
+    <replaceStrings>
+      <replace>self::getWidget</replace>
+    </replaceStrings>
+  </component>
+  <component name="Git.Settings">
+    <option name="RECENT_GIT_ROOT_PATH" value="$PROJECT_DIR$/.." />
+  </component>
+  <component name="IdeDocumentHistory">
+    <option name="CHANGED_PATHS">
+      <list>
+        <option value="$PROJECT_DIR$/theme/forget.html" />
+        <option value="$PROJECT_DIR$/Plugin.php" />
+        <option value="$PROJECT_DIR$/Action.php" />
+        <option value="$PROJECT_DIR$/README.md" />
+      </list>
+    </option>
+  </component>
+  <component name="PhpWorkspaceProjectConfiguration">
+    <include_path>
+      <path value="$PROJECT_DIR$/../../../v1.1" />
+    </include_path>
+  </component>
+  <component name="ProjectFrameBounds" extendedState="6">
+    <option name="x" value="-6" />
+    <option name="y" value="505" />
+    <option name="width" value="1693" />
+    <option name="height" value="515" />
+  </component>
+  <component name="ProjectLevelVcsManager" settingsEditedManually="true" />
+  <component name="ProjectView">
+    <navigator proportions="" version="1">
+      <foldersAlwaysOnTop value="true" />
+    </navigator>
+    <panes>
+      <pane id="Scope" />
+      <pane id="ProjectPane">
+        <subPane>
+          <expand>
+            <path>
+              <item name="LoveKKComment" type="b2602c69:ProjectViewProjectNode" />
+              <item name="LoveKKComment" type="462c0819:PsiDirectoryNode" />
+            </path>
+            <path>
+              <item name="LoveKKComment" type="b2602c69:ProjectViewProjectNode" />
+              <item name="External Libraries" type="bcb0276e:PhpExternalLibrariesNodePatcher$PatchedExternalLibrariesNode" />
+            </path>
+          </expand>
+          <select />
+        </subPane>
+      </pane>
+    </panes>
+  </component>
+  <component name="PropertiesComponent">
+    <property name="DefaultHtmlFileTemplate" value="HTML File" />
+    <property name="HbShouldOpenHtmlAsHb" value="" />
+    <property name="WebServerToolWindowFactoryState" value="false" />
+    <property name="last_opened_file_path" value="$PROJECT_DIR$/../../../v1.1" />
+    <property name="nodejs_interpreter_path.stuck_in_default_project" value="undefined stuck path" />
+    <property name="settings.editor.selected.configurable" value="project.propVCSSupport.Mappings" />
+  </component>
+  <component name="RunDashboard">
+    <option name="ruleStates">
+      <list>
+        <RuleState>
+          <option name="name" value="ConfigurationTypeDashboardGroupingRule" />
+        </RuleState>
+        <RuleState>
+          <option name="name" value="StatusDashboardGroupingRule" />
+        </RuleState>
+      </list>
+    </option>
+  </component>
+  <component name="SvnConfiguration">
+    <configuration />
+  </component>
+  <component name="TaskManager">
+    <task active="true" id="Default" summary="Default task">
+      <changelist id="32f10aeb-a6c7-469b-832d-e86fea59b938" name="默认的" comment="" />
+      <created>1521955841482</created>
+      <option name="number" value="Default" />
+      <option name="presentableId" value="Default" />
+      <updated>1521955841482</updated>
+      <workItem from="1521955842856" duration="1419000" />
+      <workItem from="1521969048994" duration="10520000" />
+      <workItem from="1522241522350" duration="2418000" />
+      <workItem from="1534670224207" duration="2361000" />
+      <workItem from="1546824740806" duration="4921000" />
+      <workItem from="1546834601566" duration="4637000" />
+      <workItem from="1546859374707" duration="14218000" />
+      <workItem from="1546912900287" duration="11466000" />
+      <workItem from="1546962005464" duration="877000" />
+    </task>
+    <task id="LOCAL-00001" summary="编写中">
+      <created>1521985946437</created>
+      <option name="number" value="00001" />
+      <option name="presentableId" value="LOCAL-00001" />
+      <option name="project" value="LOCAL" />
+      <updated>1521985946437</updated>
+    </task>
+    <task id="LOCAL-00002" summary="1.0.0">
+      <created>1521990347912</created>
+      <option name="number" value="00002" />
+      <option name="presentableId" value="LOCAL-00002" />
+      <option name="project" value="LOCAL" />
+      <updated>1521990347912</updated>
+    </task>
+    <option name="localTasksCounter" value="3" />
+    <servers />
+  </component>
+  <component name="TimeTrackingManager">
+    <option name="totallyTimeSpent" value="52837000" />
+  </component>
+  <component name="ToolWindowManager">
+    <frame x="-8" y="-8" width="1696" height="1026" extended-state="6" />
+    <editor active="true" />
+    <layout>
+      <window_info active="true" content_ui="combo" id="Project" order="0" visible="true" weight="0.14425428" />
+      <window_info id="Structure" order="1" weight="0.25" />
+      <window_info id="Favorites" order="2" side_tool="true" />
+      <window_info anchor="bottom" id="Message" order="0" />
+      <window_info anchor="bottom" id="Find" order="1" />
+      <window_info anchor="bottom" id="Run" order="2" />
+      <window_info anchor="bottom" id="Debug" order="3" weight="0.4" />
+      <window_info anchor="bottom" id="Cvs" order="4" weight="0.25" />
+      <window_info anchor="bottom" id="Inspection" order="5" weight="0.4" />
+      <window_info anchor="bottom" id="TODO" order="6" />
+      <window_info anchor="bottom" id="运行" order="7" />
+      <window_info anchor="bottom" id="Docker" order="8" show_stripe_button="false" />
+      <window_info anchor="bottom" id="Version Control" order="9" show_stripe_button="false" />
+      <window_info anchor="bottom" id="Terminal" order="10" />
+      <window_info anchor="bottom" id="Event Log" order="11" side_tool="true" />
+      <window_info anchor="bottom" id="调试" order="12" />
+      <window_info anchor="bottom" id="消息" order="13" weight="0.3292683" />
+      <window_info anchor="bottom" id="Database Changes" order="14" show_stripe_button="false" />
+      <window_info anchor="right" id="Commander" order="0" weight="0.4" />
+      <window_info anchor="right" id="Ant Build" order="1" weight="0.25" />
+      <window_info anchor="right" content_ui="combo" id="Hierarchy" order="2" weight="0.25" />
+      <window_info anchor="right" id="Database" order="3" />
+    </layout>
+  </component>
+  <component name="TypeScriptGeneratedFilesManager">
+    <option name="version" value="1" />
+  </component>
+  <component name="VcsManagerConfiguration">
+    <option name="CHECK_CODE_SMELLS_BEFORE_PROJECT_COMMIT" value="false" />
+    <ignored-roots>
+      <path value="$PROJECT_DIR$/.." />
+      <path value="$PROJECT_DIR$" />
+    </ignored-roots>
+    <MESSAGE value="编写中" />
+    <MESSAGE value="1.0.0" />
+    <option name="LAST_COMMIT_MESSAGE" value="1.0.0" />
+    <option name="OPTIMIZE_IMPORTS_BEFORE_PROJECT_COMMIT" value="true" />
+    <option name="REFORMAT_BEFORE_PROJECT_COMMIT" value="true" />
+    <option name="REARRANGE_BEFORE_PROJECT_COMMIT" value="true" />
+  </component>
+  <component name="editorHistoryManager">
+    <entry file="file://$PROJECT_DIR$/theme/approved.html">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="442">
+          <caret line="17" column="8" selection-start-line="17" selection-start-column="8" selection-end-line="17" selection-end-column="8" />
+          <folding>
+            <element signature="n#style#0;n#table#0;n#!!top" expanded="true" />
+          </folding>
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/theme/forget.html">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="78">
+          <caret line="3" column="96" selection-start-line="3" selection-start-column="96" selection-end-line="3" selection-end-column="96" />
+          <folding>
+            <element signature="n#style#0;n#div#0;n#!!top" expanded="true" />
+            <element signature="n#style#0;n#div#0;n#div#0;n#!!top" expanded="true" />
+            <element signature="n#style#0;n#div#0;n#div#0;n#div#0;n#!!top" expanded="true" />
+            <element signature="n#style#0;n#h1#0;n#div#0;n#div#0;n#div#0;n#!!top" expanded="true" />
+            <element signature="n#style#0;n#a#0;n#h1#0;n#div#0;n#div#0;n#div#0;n#!!top" expanded="true" />
+            <element signature="n#style#0;n#div#1;n#div#0;n#div#0;n#!!top" expanded="true" />
+            <element signature="n#style#0;n#h2#0;n#div#1;n#div#0;n#div#0;n#!!top" expanded="true" />
+            <element signature="n#style#0;n#span#0;n#h2#0;n#div#1;n#div#0;n#div#0;n#!!top" expanded="true" />
+            <element signature="n#style#0;n#p#0;n#div#1;n#div#0;n#div#0;n#!!top" expanded="true" />
+            <element signature="n#style#0;n#table#0;n#div#1;n#div#0;n#div#0;n#!!top" expanded="true" />
+            <element signature="n#style#0;n#th#0;n#tr#0;n#thead#0;n#table#0;n#div#1;n#div#0;n#div#0;n#!!top" expanded="true" />
+            <element signature="n#style#0;n#th#1;n#tr#0;n#thead#0;n#table#0;n#div#1;n#div#0;n#div#0;n#!!top" expanded="true" />
+            <element signature="n#style#0;n#th#2;n#tr#0;n#thead#0;n#table#0;n#div#1;n#div#0;n#div#0;n#!!top" expanded="true" />
+            <element signature="n#style#0;n#td#0;n#tr#0;n#tbody#0;n#table#0;n#div#1;n#div#0;n#div#0;n#!!top" expanded="true" />
+            <element signature="n#style#0;n#td#1;n#tr#0;n#tbody#0;n#table#0;n#div#1;n#div#0;n#div#0;n#!!top" expanded="true" />
+            <element signature="n#style#0;n#td#2;n#tr#0;n#tbody#0;n#table#0;n#div#1;n#div#0;n#div#0;n#!!top" expanded="true" />
+            <element signature="n#style#0;n#a#0;n#td#2;n#tr#0;n#tbody#0;n#table#0;n#div#1;n#div#0;n#div#0;n#!!top" expanded="true" />
+            <element signature="n#style#0;n#td#0;n#tr#1;n#tbody#0;n#table#0;n#div#1;n#div#0;n#div#0;n#!!top" expanded="true" />
+            <element signature="n#style#0;n#div#0;n#div#1;n#div#0;n#div#0;n#!!top" expanded="true" />
+          </folding>
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/lib/SMTP.php">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="350">
+          <caret line="737" lean-forward="true" selection-start-line="737" selection-end-line="737" />
+          <folding>
+            <element signature="e#6#839#0#PHP" expanded="true" />
+          </folding>
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/lib/PHPMailer.php">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="688">
+          <caret line="3599" selection-start-line="3599" selection-end-line="3599" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/LICENSE">
+      <provider selected="true" editor-type-id="text-editor" />
+    </entry>
+    <entry file="file://$PROJECT_DIR$/Plugin.php">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="254">
+          <caret line="910" column="31" selection-start-line="910" selection-start-column="31" selection-end-line="910" selection-end-column="31" />
+          <folding>
+            <element signature="e#6#134#0#PHP" expanded="true" />
+          </folding>
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/Action.php">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="-7130">
+          <caret line="212" column="27" selection-start-line="212" selection-start-column="27" selection-end-line="212" selection-end-column="27" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/README.md">
+      <provider selected="true" editor-type-id="split-provider[text-editor;markdown-preview-editor]">
+        <state split_layout="FIRST">
+          <first_editor relative-caret-position="553">
+            <caret line="60" column="13" selection-start-line="60" selection-start-column="13" selection-end-line="60" selection-end-column="13" />
+          </first_editor>
+          <second_editor />
+        </state>
+      </provider>
+    </entry>
+  </component>
+  <component name="masterDetails">
+    <states>
+      <state key="ScopeChooserConfigurable.UI">
+        <settings>
+          <splitter-proportions>
+            <option name="proportions">
+              <list>
+                <option value="0.2" />
+              </list>
+            </option>
+          </splitter-proportions>
+        </settings>
+      </state>
+    </states>
+  </component>
+</project>
\ No newline at end of file
diff --git a/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/Action.php b/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/Action.php
new file mode 100644
index 0000000..37f7a8d
--- /dev/null
+++ b/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/Action.php
@@ -0,0 +1,513 @@
+<?php
+/**
+ * Typecho 评论通知、找回密码插件
+ *
+ * @package LoveKKComment
+ * @author  康粑粑
+ * @version 1.0.5
+ * @link    https://www.usebsd.com
+ */
+
+if ( !defined('__TYPECHO_ROOT_DIR__') ) exit;
+
+class LoveKKComment_Action extends Widget_Abstract_Users implements Widget_Interface_Do
+{
+    /**
+     * 插件配置
+     *
+     * @access private
+     * @var mixed
+     */
+    private $_plugin = NULL;
+    
+    /**
+     * 构造函数
+     *
+     * @param mixed $request  请求对象
+     * @param mixed $response 输出对象
+     * @param null  $params   请求参数
+     *
+     * @throws Typecho_Plugin_Exception
+     */
+    public function __construct($request, $response, $params = NULL)
+    {
+        parent::__construct($request, $response, $params);
+        // 获取插件配置信息
+        $this->_plugin = $this->options->plugin('LoveKKComment');
+    }
+    
+    /**
+     * 找回密码页面输出
+     *
+     * @access private
+     *
+     * @param string $act  当前操作
+     * @param mixed  $form 表单对象
+     */
+    private function html($act = 'forget', $form = NULL)
+    {
+        ?>
+        <!DOCTYPE html>
+        <html class="no-js">
+        <head>
+            <meta charset="<?php $this->options->charset(); ?>">
+            <meta http-equiv="X-UA-Compatible" content="IE=edge">
+            <meta name="renderer" content="webkit">
+            <meta name="viewport" content="width=device-width, initial-scale=1">
+            <title><?php _e('%s - %s - Powered by Typecho', 'reset' == $act ? _t('重置密码') : _t('找回密码'), $this->options->title); ?></title>
+            <meta name="robots" content="noindex, nofollow">
+            <link rel="stylesheet"
+                  href="<?php $this->options->adminStaticUrl('css', 'normalize.css'); ?>">
+            <link rel="stylesheet"
+                  href="<?php $this->options->adminStaticUrl('css', 'grid.css'); ?>">
+            <link rel="stylesheet"
+                  href="<?php $this->options->adminStaticUrl('css', 'style.css'); ?>">
+            <!--[if lt IE 9]>
+            <script src="<?php $this->options->adminStaticUrl('js', 'html5shiv.js');?>"></script>
+            <script src="<?php $this->options->adminStaticUrl('js', 'respond.js');?>"></script>
+            <![endif]-->
+        </head>
+        <body class="body-100">
+        <!--[if lt IE 9]>
+        <div class="message error browsehappy" role="dialog"><?php _e('当前网页 <strong>不支持</strong> 你正在使用的浏览器. 为了正常的访问, 请
+            <a href="http://browsehappy.com/">升级你的浏览器</a>'); ?>.
+        </div>
+        <![endif]-->
+        <div class="typecho-login-wrap">
+            <div class="typecho-login">
+                <h1><a href="http://typecho.org" class="i-logo">Typecho</a></h1>
+                <?php $form->render(); ?>
+            </div>
+        </div>
+        <script src="<?php $this->options->adminStaticUrl('js', 'jquery.js'); ?>"></script>
+        <script src="<?php $this->options->adminStaticUrl('js', 'jquery-ui.js'); ?>"></script>
+        <script src="<?php $this->options->adminStaticUrl('js', 'typecho.js'); ?>"></script>
+        <script>
+            (function () {
+                $(document).ready(function () {
+                    (function () {
+                        var prefix = '<?php echo Typecho_Cookie::getPrefix();?>',
+                            cookies = {
+                                notice: $.cookie(prefix + '__typecho_notice'),
+                                noticeType: $.cookie(prefix + '__typecho_notice_type'),
+                                highlight: $.cookie(prefix + '__typecho_notice_highlight')
+                            },
+                            path = '<?php echo Typecho_Cookie::getPath(); ?>';
+                        if (!!cookies.notice && 'success|notice|error'.indexOf(cookies.noticeType) >= 0) {
+                            var head = $('.typecho-head-nav'),
+                                p = $('<div class="message popup ' + cookies.noticeType + '">'
+                                    + '<ul><li>' + $.parseJSON(cookies.notice).join('</li><li>')
+                                    + '</li></ul></div>'), offset = 0;
+                            if (head.length > 0) {
+                                p.insertAfter(head);
+                                offset = head.outerHeight();
+                            } else {
+                                p.prependTo(document.body);
+                            }
+
+                            function checkScroll() {
+                                if ($(window).scrollTop() >= offset) {
+                                    p.css({
+                                        'position': 'fixed',
+                                        'top': 0
+                                    });
+                                } else {
+                                    p.css({
+                                        'position': 'absolute',
+                                        'top': offset
+                                    });
+                                }
+                            }
+
+                            $(window).scroll(function () {
+                                checkScroll();
+                            });
+                            checkScroll();
+                            p.slideDown(function () {
+                                var t = $(this), color = '#C6D880';
+                                if (t.hasClass('error')) {
+                                    color = '#FBC2C4';
+                                } else if (t.hasClass('notice')) {
+                                    color = '#FFD324';
+                                }
+                                t.effect('highlight', {color: color})
+                                    .delay(5000).fadeOut(function () {
+                                    $(this).remove();
+                                });
+                            });
+                            $.cookie(prefix + '__typecho_notice', null, {path: path});
+                            $.cookie(prefix + '__typecho_notice_type', null, {path: path});
+                        }
+                        if (cookies.highlight) {
+                            $('#' + cookies.highlight).effect('highlight', 1000);
+                            $.cookie(prefix + '__typecho_notice_highlight', null, {path: path});
+                        }
+                    })();
+                    (function () {
+                        $('#typecho-nav-list').find('.parent a').focus(function () {
+                            $('#typecho-nav-list').find('.child').hide();
+                            $(this).parents('.root').find('.child').show();
+                        });
+                        $('.operate').find('a').focus(function () {
+                            $('#typecho-nav-list').find('.child').hide();
+                        });
+                    })();
+                    if ($('.typecho-login').length == 0) {
+                        $('a').each(function () {
+                            var t = $(this), href = t.attr('href');
+                            if ((href && href[0] == '#')
+                                || /^<?php echo preg_quote($this->options->adminUrl, '/'); ?>.*$/.exec(href)
+                                || /^<?php echo substr(preg_quote(Typecho_Common::url('s', $this->options->index), '/'), 0, -1); ?>action\/[_a-zA-Z0-9\/]+.*$/.exec(href)) {
+                                return;
+                            }
+                            t.attr('target', '_blank');
+                        });
+                    }
+                });
+            })();
+        </script>
+        <?php if ( 'forget' == $act ) : ?>
+            <script>$(document).ready(function () {
+                    $('#mail').focus();
+                });</script><?php endif; ?>
+        </body>
+        </html>
+        <?php
+    }
+    
+    /**
+     * 忘记密码表单
+     *
+     * @access private
+     * @return Typecho_Widget_Helper_Form
+     */
+    private function forgetForm()
+    {
+        // 创建表单
+        $form = new Typecho_Widget_Helper_Form($this->security->getIndex('action/lovekkcomment'), Typecho_Widget_Helper_Form::POST_METHOD);
+        // 邮箱地址
+        $mail = new Typecho_Widget_Helper_Form_Element_Text('mail', NULL, NULL, _t('邮箱地址'), _t('请输入您注册时的邮箱地址'));
+        // 添加class
+        $mail->input->setAttribute('class', 'text-l w-100');
+        // 添加规则
+        $mail->addRule('required', _t('必须输入您的邮箱地址'));
+        $mail->addRule('email', _t('请输入正确的邮箱格式'));
+        $form->addInput($mail);
+        // 动作
+        $do = new Typecho_Widget_Helper_Form_Element_Hidden('do', NULL, 'forget');
+        $form->addItem($do);
+        // 提交按钮
+        $submit = new Typecho_Widget_Helper_Form_Element_Submit('submit', NULL, _t('提交'));
+        // 添加class
+        $submit->input->setAttribute('class', 'btn btn-l w-100 primary');
+        $form->addItem($submit);
+        
+        return $form;
+    }
+    
+    /**
+     * 重置密码表单
+     *
+     * @access private
+     *
+     * @param int $uid 用户编号
+     *
+     * @return Typecho_Widget_Helper_Form
+     */
+    private function resetForm($uid = 0)
+    {
+        // 创建表单
+        $form = new Typecho_Widget_Helper_Form($this->security->getIndex('action/lovekkcomment'), Typecho_Widget_Helper_Form::POST_METHOD);
+        // 登录密码
+        $password = new Typecho_Widget_Helper_Form_Element_Password('password', NULL, NULL, _t('用户密码'), _t('建议使用特殊字符与字母、数字的混编样式,以增加系统安全性.'));
+        // 设置class
+        $password->input->setAttribute('class', 'text-l w-100');
+        // 添加规则
+        $password->addRule('required', _t('必须输入您的邮箱地址'));
+        $password->addRule('minLength', _t('为了保证账户安全, 请设置最少8位数的密码'), 8);
+        $form->addInput($password);
+        // 密码确认
+        $confirm = new Typecho_Widget_Helper_Form_Element_Password('confirm', NULL, NULL, _t('用户密码确认'), _t('请确认您的密码, 与上面输入的密码保持一致.'));
+        // 设置class
+        $confirm->input->setAttribute('class', 'text-l w-100');
+        // 添加规则
+        $confirm->addRule('confirm', _t('您两次输入的密码不一致, 请重新输入'), 'password');
+        $form->addInput($confirm);
+        // 动作
+        $do = new Typecho_Widget_Helper_Form_Element_Hidden('do', NULL, 'reset');
+        $form->addItem($do);
+        // uid
+        $uid = new Typecho_Widget_Helper_Form_Element_Hidden('uid', NULL, $uid);
+        $form->addItem($uid);
+        // 提交按钮
+        $submit = new Typecho_Widget_Helper_Form_Element_Submit('submit', NULL, _t('提交'));
+        // 添加class
+        $submit->input->setAttribute('class', 'btn btn-l w-100 primary');
+        $form->addItem($submit);
+        
+        return $form;
+    }
+    
+    /**
+     * 找回密码提交
+     *
+     * @access private
+     * @throws Typecho_Exception
+     * @throws Typecho_Plugin_Exception
+     * @throws \PHPMailer\PHPMailer\Exception
+     */
+    private function doForget()
+    {
+        // 验证表单
+        if ( $error = $this->forgetForm()->validate() ) {
+            // 显示错误信息
+            $this->widget('Widget_Notice')->set($error, 'error');
+            // 返回上一页
+            $this->response->goBack();
+        }
+        // 查询用户数据
+        $user = $this->db->fetchRow($this->select()->where('mail = ?', $this->request->mail));
+        // 没有用户
+        if ( !$user ) {
+            // 输出错误
+            $this->widget('Widget_Notice')->set(_t('邮箱地址错误, 请核对后重新输入'), 'error');
+            // 返回上一页
+            $this->response->goBack();
+        }
+        // 过期时间
+        $expire = $this->_plugin->public_expire ? $this->_plugin->public_expire : 10;
+        // 转换为秒数
+        $time = time() + $expire * 60;
+        // 构造参数
+        $query = array(
+            'reset' => 'true',
+            't' => md5($user['uid'] . $user['name'] . $user['mail'] . $time),
+            'm' => $user['mail'],
+            'e' => $time
+        );
+        // 生成链接地址
+        $uri = Typecho_Common::url('/action/lovekkcomment?' . http_build_query($query), $this->options->index);
+        // 请求参数
+        $data = array(
+            'fromName' => ( !isset($this->_plugin->public_name) || is_null($this->_plugin->public_name) || empty($this->_plugin->public_name) ) ? trim($this->options->title) : $this->_plugin->public_name, // 发件人名称
+            'from' => $this->_plugin->public_mail, // 发件地址
+            'to' => $user['mail'], // 收件地址
+            'replyTo' => $this->_plugin->public_replyto // 回信地址
+        );
+        // 标题
+        $data['subject'] = _t('您在 [' . trim($this->options->title) . '] 提交的密码找回申请!');
+        // 读取模板
+        $html = file_get_contents(dirname(__FILE__) . '/theme/forget.html');
+        // 替换内容
+        $data['html'] = str_replace(
+            array(
+                '{blogname}',
+                '{blogurl}',
+                '{mail}',
+                '{sendtime}',
+                '{resetlink}',
+                '{expire}'
+            ),
+            array(
+                trim($this->options->title),
+                trim($this->options->siteUrl),
+                trim($user['mail']),
+                trim(date('Y-m-d H:i:s', time())),
+                trim($uri),
+                trim($expire)
+            ),
+            $html
+        );
+        // 根据接口选择
+        switch ( $this->_plugin->public_interface ) {
+            case 'sendcloud': // Send Cloud
+                // API User
+                $data['apiUser'] = $this->_plugin->sendcloud_api_user;
+                // API Key
+                $data['apiKey'] = $this->_plugin->sendcloud_api_key;
+                // 是否成功
+                if ( !LoveKKComment_Plugin::sendCloud($data) ) {
+                    // 输出错误信息
+                    $this->widget('Widget_Notice')->set(_t('邮件发送失败, 请联系管理员解决!'), 'error');
+                    // 跳转回去
+                    $this->response->goBack();
+                }
+                // 输出提示
+                $this->widget('Widget_Notice')->set(_t('已将重置密码信息发送至您的注册邮箱中, 请注意查收!'), 'success');
+                // 跳转回去
+                $this->response->goBack();
+            case 'aliyun': // 阿里云
+                // 判断当前请求区域
+                switch ( $this->_plugin->ali_region ) {
+                    case 'hangzhou': // 杭州
+                        // API地址
+                        $data['api'] = 'https://dm.aliyuncs.com/';
+                        // API版本号
+                        $data['version'] = '2015-11-23';
+                        // 机房信息
+                        $data['region'] = 'cn-hangzhou';
+                        break;
+                    case 'singapore': // 新加坡
+                        // API地址
+                        $data['api'] = 'https://dm.ap-southeast-1.aliyuncs.com/';
+                        // API版本号
+                        $data['version'] = '2017-06-22';
+                        // 机房信息
+                        $data['region'] = 'ap-southeast-1';
+                        break;
+                    case 'sydney': // 悉尼
+                        // API地址
+                        $data['api'] = 'https://dm.ap-southeast-2.aliyuncs.com/';
+                        // API版本号
+                        $data['version'] = '2017-06-22';
+                        // 机房信息
+                        $data['region'] = 'ap-southeast-2';
+                        break;
+                }
+                // AccessKeyId
+                $data['accessid'] = $this->_plugin->ali_accesskey_id;
+                // AccessKeySecret
+                $data['accesssecret'] = $this->_plugin->ali_accesskey_secret;
+                // 是否成功
+                if ( !LoveKKComment_Plugin::aliyun($data) ) {
+                    // 输出错误信息
+                    $this->widget('Widget_Notice')->set(_t('邮件发送失败, 请联系管理员解决!'), 'error');
+                    // 跳转回去
+                    $this->response->goBack();
+                }
+                // 输出提示
+                $this->widget('Widget_Notice')->set(_t('已将重置密码信息发送至您的注册邮箱中, 请注意查收!'), 'success');
+                // 跳转回去
+                $this->response->goBack();
+            default: // SMTP
+                // SMTP地址
+                $data['smtp_host'] = $this->_plugin->smtp_host;
+                // SMTP端口
+                $data['smtp_port'] = $this->_plugin->smtp_port;
+                // SMTP用户
+                $data['smtp_user'] = $this->_plugin->smtp_user;
+                // SMTP密码
+                $data['smtp_pass'] = $this->_plugin->smtp_pass;
+                // 验证模式
+                $data['smtp_auth'] = $this->_plugin->smtp_auth;
+                // 加密模式
+                $data['smtp_secure'] = $this->_plugin->smtp_secure;
+                // 是否成功
+                if ( !LoveKKComment_Plugin::smtp($data) ) {
+                    // 输出错误信息
+                    $this->widget('Widget_Notice')->set(_t('邮件发送失败, 请联系管理员解决!'), 'error');
+                    // 跳转回去
+                    $this->response->goBack();
+                }
+                // 输出提示
+                $this->widget('Widget_Notice')->set(_t('已将重置密码信息发送至您的注册邮箱中, 请注意查收!'), 'success');
+                // 跳转回去
+                $this->response->goBack();
+        }
+    }
+    
+    /**
+     * 重置密码界面
+     *
+     * @access private
+     * @throws Typecho_Exception
+     */
+    private function reset()
+    {
+        // 获取过期时间
+        $expire = $this->request->filter('int')->e;
+        // 如果链接过期则输出错误
+        if ( time() > $expire ) {
+            // 输出错误
+            $this->widget('Widget_Notice')->set(_t('抱歉, 您所提交的重置密码链接已过期, 请重新获取'), 'notice');
+            // 跳转到找回密码界面
+            $this->response->redirect(Typecho_Common::url('/action/lovekkcomment?forget', $this->options->index));
+        }
+        // 查询用户数据
+        $user = $this->db->fetchRow($this->select()->where('mail = ?', $this->request->m));
+        // 没有用户
+        if ( !$user ) {
+            // 输出错误
+            $this->widget('Widget_Notice')->set(_t('抱歉, 您的请求有误'), 'error');
+            // 返回登录界面
+            $this->resopnse->redirect($this->options->loginUrl);
+        }
+        // 取出数据
+        $token = $this->request->filter('strip_tags', 'trim', 'xss')->t;
+        // 如果验证不通过
+        if ( $token != md5($user['uid'] . $user['name'] . $user['mail'] . $expire) ) {
+            // 输出错误
+            $this->widget('Widget_Notice')->set(_t('抱歉, 您的请求验证错误'), 'error');
+            // 返回登录界面
+            $this->resopnse->redirect($this->options->loginUrl);
+        }
+        // 显示重置界面
+        $this->html('reset', $this->resetForm($user['uid']));
+    }
+    
+    /**
+     * 重置密码提交
+     *
+     * @access private
+     * @throws Typecho_Exception
+     */
+    private function doReset()
+    {
+        // 验证表单
+        if ( $error = $this->resetForm()->validate() ) {
+            // 显示错误信息
+            $this->widget('Widget_Notice')->set($error, 'error');
+            // 返回上一页
+            $this->response->goBack();
+        }
+        // 获取用户uid
+        $uid = $this->request->filter('integer')->uid;
+        // 验证uid
+        if ( !$uid ) {
+            // 显示错误信息
+            $this->widget('Widget_Notice')->set(_t('抱歉, 您的请求验证失败'), 'error');
+            // 返回上一页
+            $this->response->goBack();
+        }
+        echo '2';
+        // 初始化passwordhash
+        $hasher = new PasswordHash(8, TRUE);
+        // 密码加密
+        $password = $hasher->HashPassword($this->request->password);
+        // 更新密码
+        if ( $this->update(array('password' => $password), $this->db->sql()->where('uid = ?', $uid)) ) {
+            // 显示成功信息
+            $this->widget('Widget_Notice')->set(_t('密码重置成功'), 'success');
+            // 跳转登录页面
+            $this->response->redirect($this->options->loginUrl);
+        }
+        echo '3';
+        // 显示错误信息
+        $this->widget('Widget_Notice')->set(_t('密码重置失败, 请联系管理员'), 'error');
+        // 跳转登录页面
+        $this->response->redirect($this->options->loginUrl);
+    }
+    
+    /**
+     * 操作方法
+     *
+     * @access public
+     * @throws Typecho_Exception
+     */
+    public function action()
+    {
+        // 如果用户是登录状态则直接跳转至个人信息界面
+        if ( $this->user->hasLogin() ) $this->response->redirect($this->options->profileUrl);
+        // 动作必须是POST提交
+        if ( $this->request->isPost() ) {
+            // 忘记密码请求
+            $this->on($this->request->is('do=forget'))->doForget();
+            // 重置密码请求
+            $this->on($this->request->is('do=reset'))->doReset();
+        }
+        // 忘记密码界面
+        if ( $this->request->is('forget') ) $this->html('forget', $this->forgetForm());
+        // 重置密码界面
+        if ( $this->request->is('reset') ) $this->reset();
+    }
+}
\ No newline at end of file
diff --git a/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/LICENSE b/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/LICENSE
new file mode 100644
index 0000000..3545a52
--- /dev/null
+++ b/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2018 康康
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/Plugin.php b/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/Plugin.php
new file mode 100644
index 0000000..f3f1d73
--- /dev/null
+++ b/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/Plugin.php
@@ -0,0 +1,927 @@
+<?php
+/**
+ * Typecho 评论通知、找回密码插件
+ *
+ * @package LoveKKComment
+ * @author  康粑粑
+ * @version 1.0.5
+ * @link    https://www.usebsd.com
+ */
+
+if ( !defined('__TYPECHO_ROOT_DIR__') ) exit;
+// 时间区域
+date_default_timezone_set('Asia/Shanghai');
+
+class LoveKKComment_Plugin implements Typecho_Plugin_Interface
+{
+    /**
+     * 激活插件
+     *
+     * @static
+     * @access public
+     * @throws Typecho_Plugin_Exception
+     */
+    static public function activate()
+    {
+        // 检查CURL
+        if ( !function_exists('curl_init') ) {
+            throw new Typecho_Plugin_Exception(_t('对不起，使用本插件必须要支持CURL'));
+        }
+        
+        // 评论通知添加绑定
+        Typecho_Plugin::factory('Widget_Feedback')->finishComment = array(__CLASS__, 'doComment');
+        Typecho_Plugin::factory('Widget_Comments_Edit')->finishComment = array(__CLASS__, 'doComment');
+        Typecho_Plugin::factory('Widget_Comments_Edit')->mark = array(__CLASS__, 'doApproved');
+        // 检测当前版本
+        if ( version_compare(str_replace('/', '.', Typecho_Common::VERSION), '1.1.17.10.30') ) {
+            // 注册异步回调
+            Typecho_Plugin::factory('Widget_Service')->sendMail = array(__CLASS__, 'sendMail');
+            Typecho_Plugin::factory('Widget_Service')->asyncApproved = array(__CLASS__, 'asyncApproved');
+        }
+        
+        // 找回密码绑定
+        Typecho_Plugin::factory('admin/footer.php')->end = array(__CLASS__, 'forgetLink');
+        // 找回密码动作添加
+        Helper::addAction('lovekkcomment', 'LoveKKComment_Action');
+        // 找回密码路由添加
+        Helper::addRoute('lovekkcomment_forget', '/lovekkcomment/forget', 'LoveKKComment_Action', 'forget');
+        Helper::addRoute('lovekkcomment_reset', '/lovekkcomment/reset', 'LoveKKCOmment_Action', 'reset');
+    }
+    
+    /**
+     * 禁用插件
+     *
+     * @static
+     * @access public
+     */
+    static public function deactivate()
+    {
+        // 删除动作
+        Helper::removeAction('lovekkcomment');
+        // 删除路由
+        Helper::removeRoute('lovekkcomment_forget');
+        Helper::removeRoute('lovekkcomment_reset');
+    }
+    
+    /**
+     * 插件配置
+     *
+     * @static
+     * @access public
+     *
+     * @param Typecho_Widget_Helper_Form $form
+     */
+    static public function config(Typecho_Widget_Helper_Form $form)
+    {
+        // 公共区域
+        $public_section = new Typecho_Widget_Helper_Layout('div', array('class=' => 'typecho-page-title'));
+        // 区块标题
+        $public_section->html('<h2>公共信息配置</h2>');
+        $form->addItem($public_section);
+        // 找回密码开启
+        $public_forget = new Typecho_Widget_Helper_Form_Element_Checkbox('public_forget', array('enable' => _t('启用找回密码')), array('enable'), _t('是否启用找回密码功能'), _t('启用后，将在登录界面出现找回密码链接，并发送邮件至账号邮箱找回密码'));
+        $form->addInput($public_forget);
+        // 找回密码过期时间
+        $public_expire = new Typecho_Widget_Helper_Form_Element_Text('public_expire', NULL, '10', _t('验证过期时间'), _t('当发起找回密码申请后，会有一封链接邮件，此处定义链接过期时间，单位为分钟'));
+        $form->addInput($public_expire);
+        // Debug模式
+        $public_debug = new Typecho_Widget_Helper_Form_Element_Checkbox('public_debug', array('enable' => _t('启用Debug')), array('enable'), _t('是否启用Debug模式'), _t('启用后将在插件目录生成debug.txt文件，可记录邮件发送详细错误'));
+        $form->addInput($public_debug);
+        // 参数验证
+        $public_verify = new Typecho_Widget_Helper_Form_Element_Checkbox('public_verify', array('enable' => _t('启用配置验证')), array('enable'), _t('是否启用参数配置验证'), _t('启用配置验证后，将会在提交配置时进行验证，检测配置是否正确，启用后可能导致配置保存速度缓慢，注意，若使用SSL连接465端口模式，可能导致验证失败，建议使用TLS连接587端口发送邮件'));
+        $form->addInput($public_verify);
+        // 接口选择
+        $public_interface = new Typecho_Widget_Helper_Form_Element_Radio('public_interface', array('smtp' => _t('SMTP'), 'sendcloud' => _t('Send Cloud'), 'aliyun' => _t('阿里云推送')), NULL, _t('发信接口'));
+        // 添加验证器并加入表单
+        $form->addInput($public_interface->addRule('required', _t('请选择发件接口')));
+        // 发件人名称
+        $public_name = new Typecho_Widget_Helper_Form_Element_Text('public_name', NULL, NULL, _t('发件人名称'), _t('邮件中显示的发信人名称，留空为博客名称'));
+        $form->addInput($public_name);
+        // 发件邮箱
+        $public_mail = new Typecho_Widget_Helper_Form_Element_Text('public_mail', NULL, NULL, _t('发件邮箱地址'), _t('邮件中显示的发信地址'));
+        $form->addInput($public_mail->addRule('required', _t('请输入发件邮箱地址'))->addRule('email', _t('请输入正确的邮箱地址')));
+        // 回信地址
+        $public_replyto = new Typecho_Widget_Helper_Form_Element_Text('public_replyto', NULL, NULL, _t('邮件回复地址'), _t('附带在邮件中的默认回信地址'));
+        $form->addInput($public_replyto->addRule('required', _t('请输入回信邮箱地址'))->addRule('email', _t('请输入正确的邮箱地址')));
+        
+        // SMTP区块
+        $smtp_section = new Typecho_Widget_Helper_Layout('div', array('class=' => 'typecho-page-title'));
+        $smtp_section->html('<h2>SMTP邮件发送设置</h2>');
+        $form->addItem($smtp_section);
+        // SMTP地址
+        $smtp_host = new Typecho_Widget_Helper_Form_Element_Text('smtp_host', NULL, NULL, _t('SMTP地址'), _t('SMTP服务器连接地址'));
+        $form->addInput($smtp_host);
+        // SMTP端口
+        $smtp_port = new Typecho_Widget_Helper_Form_Element_Text('smtp_port', NULL, NULL, _t('SMTP端口'), _t('SMTP服务器连接端口'));
+        $form->addInput($smtp_port);
+        // SMTP用户名
+        $smtp_user = new Typecho_Widget_Helper_Form_Element_Text('smtp_user', NULL, NULL, _t('SMTP登录用户'), _t('SMTP登录用户名，一般为邮箱地址'));
+        $form->addInput($smtp_user);
+        // SMTP密码
+        $smtp_pass = new Typecho_Widget_Helper_Form_Element_Text('smtp_pass', NULL, NULL, _t('SMTP登录密码'), _t('一般为邮箱密码，但某些服务商需要生成特定密码'));
+        $form->addInput($smtp_pass);
+        // 是否需要验证
+        $smtp_auth = new Typecho_Widget_Helper_Form_Element_Checkbox('smtp_auth', array('enable' => _t('服务器需要验证')), array('enable'), _t('SMTP验证模式'));
+        $form->addInput($smtp_auth);
+        // 服务器安全模式
+        $smtp_secure = new Typecho_Widget_Helper_Form_Element_Radio('smtp_secure', array('none' => _t('无安全加密'), 'ssl' => _t('SSL加密'), 'tls' => _t('TLS加密')), 'none', _t('SMTP加密模式'));
+        $form->addInput($smtp_secure);
+        
+        // SendCloud区块
+        $sendcloud_section = new Typecho_Widget_Helper_Layout('div', array('class=' => 'typecho-page-title'));
+        // 区块标题
+        $sendcloud_section->html('<h2>Send Cloud邮件发送设置</h2>');
+        $form->addItem($sendcloud_section);
+        // API USER
+        $sendcloud_api_user = new Typecho_Widget_Helper_Form_Element_Text('sendcloud_api_user', NULL, NULL, _t('API USER'), _t('请填入在SendCloud生成的API_USER'));
+        $form->addInput($sendcloud_api_user);
+        // API KEY
+        $sendcloud_api_key = new Typecho_Widget_Helper_Form_Element_Text('sendcloud_api_key', NULL, NULL, _t('API KEY'), _t('请填入在SendCloud生成的API_KEY'));
+        $form->addInput($sendcloud_api_key);
+        
+        // 阿里云推送区块
+        $ali_section = new Typecho_Widget_Helper_Layout('div', array('class=' => 'typecho-page-title'));
+        // 区块标题
+        $ali_section->html('<h2>阿里云推送邮件发送设置</h2>');
+        $form->addItem($ali_section);
+        // 地域选择
+        $ali_region = new Typecho_Widget_Helper_Form_Element_Select('ali_region', array('hangzhou' => _t('华东1(杭州)'), 'singapore' => _t('亚太东南1(新加坡)'), 'sydney' => _t('亚太东南2(悉尼)')), NULL, _t('DM接入区域'), _t('请选择您的邮件推送所在服务器区域，请务必选择正确'));
+        $form->addInput($ali_region);
+        // AccessKey ID
+        $ali_accesskey_id = new Typecho_Widget_Helper_Form_Element_Text('ali_accesskey_id', NULL, NULL, _t('AccessKey ID'), _t('请填入在阿里云生成的AccessKey ID'));
+        $form->addInput($ali_accesskey_id);
+        // Access Key Secret
+        $ali_accesskey_secret = new Typecho_Widget_Helper_Form_Element_Text('ali_accesskey_secret', NULL, NULL, _t('Access Key Secret'), _t('请填入在阿里云生成的Access Key Secret'));
+        $form->addInput($ali_accesskey_secret);
+    }
+    
+    static public function personalConfig(Typecho_Widget_Helper_Form $form)
+    {
+    }
+    
+    /**
+     * 检查配置信息
+     *
+     * @static
+     * @access public
+     *
+     * @param array $settings 配置数据
+     *
+     * @return string
+     * @throws Typecho_Plugin_Exception
+     */
+    static public function configCheck(array $settings)
+    {
+        // 获取系统配置
+        $options = Helper::options();
+        // 获取插件配置
+        $plugin = $options->plugin('LoveKKComment');
+        // 是否启用配置验证
+        if ( in_array('enable', $plugin->public_verify) ) {
+            // 根据不同的接口选择来进行验证
+            switch ( $settings['public_interface'] ) {
+                case 'sendcloud': // Send Cloud验证
+                    if ( !isset($settings['sendcloud_api_user']) || empty($settings['sendcloud_api_user']) || !isset($settings['sendcloud_api_key']) || empty($settings['sendcloud_api_key']) ) {
+                        return _t('Send Cloud API USER与API KEY必须填写');
+                    }
+                    $url = 'http://api.sendcloud.net/apiv2/apiuser/list?apiUser=' . $settings['sendcloud_api_user'] . '&apiKey=' . $settings['sendcloud_api_key'];
+                    // 使用curl连接send cloud并使用API_USER验证
+                    $ch = curl_init();
+                    curl_setopt($ch, CURLOPT_URL, $url);
+                    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
+                    $result = curl_exec($ch);
+                    curl_close($ch);
+                    $result = json_decode($result);
+                    if ( 200 != $result->statusCode ) {
+                        return _t($result->message);
+                    }
+                    break;
+                case 'aliyun':
+                    if ( !isset($settings['ali_region']) || empty($settings['ali_region']) || !isset($settings['ali_accesskey_id']) || empty($settings['ali_accesskey_id']) || !isset($settings['ali_accesskey_secret']) || empty($settings['ali_accesskey_secret']) ) {
+                        return _t('阿里云接入区域、AccessKey ID、Access Key Secret必须填写');
+                    }
+                    break;
+                default: // SMTP验证
+                    // SMTP地址
+                    if ( !isset($settings['smtp_host']) || empty($settings['smtp_host']) ) {
+                        return _t('SMTP地址必须填写');
+                    }
+                    // SMTP端口
+                    if ( !isset($settings['smtp_port']) || empty($settings['smtp_port']) ) {
+                        return _t('SMTP端口必须填写');
+                    }
+                    // 载入SMTP
+                    if ( !class_exists('PHPMailer\PHPMailer\SMTP') ) {
+                        require dirname(__FILE__) . '/lib/SMTP.php';
+                    }
+                    // 初始化SMTP类
+                    $smtp = new \PHPMailer\PHPMailer\SMTP;
+                    // hostname
+                    $hostname = 'localhost.localdomain';
+                    // 使用$_SERVER
+                    if ( isset($_SERVER) and array_key_exists('SERVER_NAME', $_SERVER) and !empty($_SERVER['SERVER_NAME']) ) {
+                        $hostname = $_SERVER['SERVER_NAME'];
+                    } else if ( function_exists('gethostname') && gethostname() !== FALSE ) { // 使用gethostname
+                        $hostname = gethostname();
+                    } else if ( php_uname('n') !== FALSE ) { // 使用php_uname
+                        $hostname = php_uname('n');
+                    }
+                    // 连接
+                    if ( !$smtp->connect($settings['smtp_host'], $settings['smtp_port'], 5) ) {
+                        return _t('SMTP连接失败，请检查SMTP地址及端口');
+                    }
+                    // 发送hello
+                    if ( !$smtp->hello($hostname) ) {
+                        return _t('SMTP发送EHLO指令失败，错误信息：' . $smtp->getError()['error'] . '，若您使用的SMTP端口是465，加密方式为SSL，可能导致此错误，建议更换为TLS加密587端口后重试');
+                    }
+                    // 获取服务器信息
+                    $e = $smtp->getServerExtList();
+                    // 是否需要StartTls
+                    if ( is_array($e) && array_key_exists('STARTTLS', $e) ) {
+                        // 验证模式是否为tls
+                        if ( 'tls' != $settings['smtp_secure'] ) {
+                            return _t('SMTP服务器要求tls加密');
+                        }
+                        // starttls加密
+                        $tls = $smtp->startTLS();
+                        // 失败
+                        if ( !$tls ) {
+                            return _t('tls加密失败，错误信息：' . $smtp->getError()['error']);
+                        }
+                        // 发送hello
+                        if ( !$smtp->hello($hostname) ) {
+                            return _t('SMTP发送EHLO指令失败，错误信息：' . $smtp->getError()['error'] . '，若您使用的SMTP端口是465，加密方式为SSL，可能导致此错误，建议更换为TLS加密587端口后重试');
+                        }
+                        // 获取服务器信息
+                        $e = $smtp->getServerExtList();
+                    }
+                    
+                    // 登录验证
+                    if ( is_array($e) && array_key_exists('AUTH', $e) || in_array('enable', $settings['smtp_auth']) ) {
+                        // 用户、密码
+                        if ( !isset($settings['smtp_user']) || !isset($settings['smtp_pass']) || empty($settings['smtp_user']) || empty($settings['smtp_pass']) ) {
+                            return _t('SMTP登录账号及密码不能为空');
+                        }
+                        // 没有启用验证
+                        if ( !in_array('enable', $settings['smtp_auth']) ) {
+                            return _t('SMTP服务器要求身份验证');
+                        }
+                        // 验证账号
+                        if ( !$smtp->authenticate($settings['smtp_user'], $settings['smtp_pass']) ) {
+                            return _t('SMTP登录失败，错误信息：' . $smtp->getError()['error']);
+                        }
+                    }
+                    // 退出登录
+                    $smtp->quit(TRUE);
+            }
+        }
+    }
+    
+    /**
+     * 评论通知
+     *
+     * @static
+     * @access public
+     *
+     * @param mixed $comment 评论对象
+     *
+     * @throws Typecho_Db_Exception
+     * @throws Typecho_Plugin_Exception
+     * @throws \PHPMailer\PHPMailer\Exception
+     */
+    static public function doComment($comment)
+    {
+        // 检测当前版本是否大于1.1/17.10.30
+        if ( version_compare(str_replace('/', '.', Typecho_Common::VERSION), '1.1.17.10.30') ) {
+            // 调用异步回调模式
+            Helper::requestService('sendMail', $comment->coid);
+        } else {
+            self::sendMail($comment->coid);
+        }
+    }
+    
+    /**
+     * 评论审核
+     *
+     * @static
+     * @access public
+     *
+     * @param mixed  $comment 评论对象
+     * @param mixed  $edit    编辑对象
+     * @param string $status  评论状态
+     *
+     * @throws Typecho_Db_Exception
+     * @throws Typecho_Plugin_Exception
+     * @throws \PHPMailer\PHPMailer\Exception
+     */
+    static public function doApproved($comment, $edit, $status)
+    {
+        // 仅审核通过才发送邮件
+        if ( 'approved' == $status ) {
+            // 检测当前版本是否大于1.1/17.10.30
+            if ( version_compare(str_replace('/', '.', Typecho_Common::VERSION), '1.1.17.10.30') ) {
+                // 调用异步回调模式
+                Helper::requestService('asyncApproved', $comment);
+            } else {
+                self::sendMail($comment->coid, TRUE);
+            }
+        }
+    }
+    
+    /**
+     * 异步审核回调
+     *
+     * @static
+     * @access public
+     *
+     * @param mixed $comment 评论对象
+     *
+     * @throws Typecho_Db_Exception
+     * @throws Typecho_Plugin_Exception
+     * @throws \PHPMailer\PHPMailer\Exception
+     */
+    static public function asyncApproved($comment)
+    {
+        // 调用异步邮件发送
+        self::sendMail($comment->coid, TRUE);
+    }
+    
+    /**
+     * 邮件发送操作
+     *
+     * @static
+     * @access public
+     *
+     * @param int  $commentId  评论编号
+     * @param bool $isApproved 是否为审核操作
+     *
+     * @return bool|string
+     * @throws Typecho_Db_Exception
+     * @throws Typecho_Plugin_Exception
+     * @throws \PHPMailer\PHPMailer\Exception
+     */
+    static public function sendMail($commentId, $isApproved = FALSE)
+    {
+        // 重新获取评论数据
+        $comment = self::getWidget('Comments', 'coid', $commentId);
+        // 收件人地址
+        $address = $comment->mail;
+        // 上级评论对象
+        $parentComment = NULL;
+        // 不是帖子发表者
+        if ( $comment->authorId != $comment->ownerId ) {
+            // 获取作者信息
+            $author = self::getWidget('Users', 'uid', $comment->ownerId);
+            // 收件地址
+            $address = $author->mail;
+            // 上级评论
+            $parentComment = NULL;
+        }
+        
+        // 评论回复
+        if ( 0 < $comment->parent ) {
+            // 获取上级对象
+            $parentComment = self::getWidget('Comments', 'coid', $comment->parent);
+            // 是否获取到且用户ID不同或邮件地址不同
+            if ( isset($parentComment->coid) && $comment->mail != $parentComment->mail ) {
+                // 收件地址
+                $address = $parentComment->mail;
+            }
+        }
+        
+        // 获取系统配置
+        $options = Helper::options();
+        // 获取插件配置
+        $plugin = $options->plugin('LoveKKComment');
+        // 请求参数
+        $data = array(
+            'fromName' => ( !isset($plugin->public_name) || empty($plugin->public_name) ) ? trim($options->title) : $plugin->public_name, // 发件人名称
+            'from' => $plugin->public_mail, // 发件地址
+            'to' => $address, // 收件地址
+            'replyTo' => $plugin->public_replyto // 回信地址
+        );
+        
+        // 如果是通过审核
+        if ( $isApproved ) {
+            // 邮件标题
+            $data['subject'] = _t('您在 [' . trim($options->title) . ']  发表的评论已通过审核！');
+            // 读取模板
+            $html = file_get_contents(dirname(__FILE__) . '/theme/approved.html');
+            // 替换内容
+            $data['html'] = str_replace(
+                array(
+                    '{blogUrl}', // 博客地址
+                    '{blogName}', // 博客名称
+                    '{author}', // 作者名称
+                    '{permalink}', // 文章链接
+                    '{title}', // 文章标题
+                    '{text}' // 评论内容
+                ),
+                array(
+                    trim($options->siteUrl),
+                    trim($options->title),
+                    trim($comment->author),
+                    trim($comment->permalink),
+                    trim($comment->title),
+                    trim($comment->text)
+                ),
+                $html
+            );
+        } else {
+            // 有上级评论
+            if ( !is_null($parentComment) ) {
+                // 标题
+                $data['subject'] = _t('您在 [' . trim($options->title) . '] 的评论有了新的回复！');
+                // 读取模板
+                $html = file_get_contents(dirname(__FILE__) . '/theme/reply.html');
+                // 获取文章
+                $post = self::getWidget('Contents', 'cid', $parentComment->cid);
+                // 替换模板
+                $data['html'] = str_replace(
+                    array(
+                        '{blogUrl}', // 博客地址
+                        '{blogName}', // 博客名称
+                        '{author}', // 作者名称
+                        '{permalink}', // 文章链接
+                        '{title}', // 文章标题
+                        '{text}', // 评论内容
+                        '{replyAuthor}', // 回复者名称
+                        '{replyText}', // 回复内容
+                        '{commentUrl}' // 评论地址
+                    ), array(
+                        trim($options->siteUrl),
+                        trim($options->title),
+                        trim($parentComment->author),
+                        trim($post->permalink),
+                        trim($post->title),
+                        trim($parentComment->text),
+                        trim($comment->author),
+                        trim($comment->text),
+                        trim($comment->permalink)
+                    ), $html
+                );
+            } else {
+                // 标题
+                $data['subject'] = _t('您在 [' . trim($options->title) . ']  发表的文章有新评论！');
+                // 读取模板
+                $html = file_get_contents(dirname(__FILE__) . '/theme/author.html');
+                // 替换模板内容
+                $data['html'] = str_replace(
+                    array(
+                        '{blogUrl}', // 博客地址
+                        '{blogName}', // 博客名称
+                        '{author}', // 作者名称
+                        '{permalink}', // 文章地址
+                        '{title}', // 文章标题
+                        '{text}' // 评论内容
+                    ), array(
+                        trim($options->siteUrl),
+                        trim($options->title),
+                        trim($comment->author),
+                        trim($comment->permalink),
+                        trim($comment->title),
+                        trim($comment->text)
+                    ), $html
+                );
+            }
+        }
+        // 根据接口进行操作
+        switch ( $plugin->public_interface ) {
+            case 'sendcloud': // Send Cloud
+                // API User
+                $data['apiUser'] = $plugin->sendcloud_api_user;
+                // API Key
+                $data['apiKey'] = $plugin->sendcloud_api_key;
+                return self::sendCloud($data);
+            case 'aliyun': // 阿里云推送
+                // 判断当前请求区域
+                switch ( $plugin->ali_region ) {
+                    case 'hangzhou': // 杭州
+                        // API地址
+                        $data['api'] = 'https://dm.aliyuncs.com/';
+                        // API版本号
+                        $data['version'] = '2015-11-23';
+                        // 机房信息
+                        $data['region'] = 'cn-hangzhou';
+                        break;
+                    case 'singapore': // 新加坡
+                        // API地址
+                        $data['api'] = 'https://dm.ap-southeast-1.aliyuncs.com/';
+                        // API版本号
+                        $data['version'] = '2017-06-22';
+                        // 机房信息
+                        $data['region'] = 'ap-southeast-1';
+                        break;
+                    case 'sydney': // 悉尼
+                        // API地址
+                        $data['api'] = 'https://dm.ap-southeast-2.aliyuncs.com/';
+                        // API版本号
+                        $data['version'] = '2017-06-22';
+                        // 机房信息
+                        $data['region'] = 'ap-southeast-2';
+                        break;
+                }
+                // AccessKeyId
+                $data['accessid'] = $plugin->ali_accesskey_id;
+                // AccessKeySecret
+                $data['accesssecret'] = $plugin->ali_accesskey_secret;
+                return self::aliyun($data);
+            default: // SMTP
+                // SMTP地址
+                $data['smtp_host'] = $plugin->smtp_host;
+                // SMTP端口
+                $data['smtp_port'] = $plugin->smtp_port;
+                // SMTP用户
+                $data['smtp_user'] = $plugin->smtp_user;
+                // SMTP密码
+                $data['smtp_pass'] = $plugin->smtp_pass;
+                // 验证模式
+                $data['smtp_auth'] = $plugin->smtp_auth;
+                // 加密模式
+                $data['smtp_secure'] = $plugin->smtp_secure;
+                return self::smtp($data);
+        }
+    }
+    
+    /**
+     * Send Cloud 邮件发送
+     *
+     * @static
+     * @access public
+     *
+     * @param array $data 公共参数
+     *
+     * @return bool|string
+     * @throws Typecho_Plugin_Exception
+     */
+    static public function sendCloud($data)
+    {
+        // 初始化Curl
+        $ch = curl_init();
+        // 请求地址
+        curl_setopt($ch, CURLOPT_URL, 'http://api.sendcloud.net/apiv2/mail/send');
+        // 基础验证
+        curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
+        // 返回数据
+        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
+        // POST请求
+        curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'POST');
+        // 请求参数
+        curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
+        // 执行请求
+        $result = curl_exec($ch);
+        // 获取错误代码
+        $errno = curl_errno($ch);
+        // 获取错误信息
+        $error = curl_error($ch);
+        // 关闭请求
+        curl_close($ch);
+        // 成功标识
+        $flag = TRUE;
+        // 获取插件配置
+        $plugin = Helper::options()->plugin('LoveKKComment');
+        // 如果开启了Debug
+        if ( in_array('enable', $plugin->public_debug) ) {
+            // 记录时间
+            $log = '[Send Cloud] ' . date('Y-m-d H:i:s') . ': ' . PHP_EOL;
+            // 如果失败
+            if ( $errno ) {
+                // 设置为失败
+                $flag = FALSE;
+                $log .= _t('邮件发送失败, 错误代码：' . $errno . '，错误提示: ' . $error . PHP_EOL);
+            }
+            // 转换为json
+            if ( $json = json_decode($result) ) {
+                // 失败
+                if ( 200 != $json->statusCode ) {
+                    // 设置为失败
+                    $flag = FALSE;
+                    $log .= _t('邮件发送失败，错误提示：' . $json->message . PHP_EOL);
+                }
+            }
+            // 记录返回值
+            $log .= _t('邮件发送返回数据：' . serialize($result) . PHP_EOL);
+            // 输出分隔
+            $log .= '-------------------------------------------' . PHP_EOL . PHP_EOL . PHP_EOL;
+            // 写入文件
+            file_put_contents(__DIR__ . '/debug.txt', $log, FILE_APPEND);
+        }
+        // 返回结果
+        return $flag;
+    }
+    
+    /**
+     * 阿里云邮件发送
+     *
+     * @static
+     * @access public
+     *
+     * @param array $param 公共参数
+     *
+     * @return bool|string
+     * @throws Typecho_Plugin_Exception
+     */
+    static public function aliyun($param)
+    {
+        // 重新组合为阿里云所使用的参数
+        $data = array(
+            'Action' => 'SingleSendMail', // 操作接口名
+            'AccountName' => $param['from'], // 发件地址
+            'ReplyToAddress' => "true", // 回信地址
+            'AddressType' => 1, // 地址类型
+            'ToAddress' => $param['to'], // 收件地址
+            'FromAlias' => $param['fromName'], // 发件人名称
+            'Subject' => $param['subject'], // 邮件标题
+            'HtmlBody' => $param['html'], // 邮件内容
+            'Format' => 'JSON', // 返回JSON
+            'Version' => $param['version'], // API版本号
+            'AccessKeyId' => $param['accessid'], // Access Key ID
+            'SignatureMethod' => 'HMAC-SHA1', // 签名方式
+            'Timestamp' => gmdate('Y-m-d\TH:i:s\Z'), // 请求时间
+            'SignatureVersion' => '1.0', // 签名算法版本
+            'SignatureNonce' => md5(time()), // 唯一随机数
+            'RegionId' => $param['region'] // 机房信息
+        );
+        // 请求签名
+        $data['Signature'] = self::sign($data, $param['accesssecret']);
+        // 初始化Curl
+        $ch = curl_init();
+        // 设置为POST请求
+        curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'POST');
+        // 请求地址
+        curl_setopt($ch, CURLOPT_URL, $param['api']);
+        // 返回数据
+        curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
+        // 提交参数
+        curl_setopt($ch, CURLOPT_POSTFIELDS, self::getPostHttpBody($data));
+        // 关闭ssl验证
+        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
+        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
+        // 执行请求
+        $result = curl_exec($ch);
+        // 获取错误代码
+        $errno = curl_errno($ch);
+        // 获取错误信息
+        $error = curl_error($ch);
+        // 获取返回状态码
+        $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
+        // 关闭请求
+        curl_close($ch);
+        // 成功标识
+        $flag = TRUE;
+        // 获取插件配置
+        $plugin = Helper::options()->plugin('LoveKKComment');
+        // 如果开启了Debug
+        if ( in_array('enable', $plugin->public_debug) ) {
+            // 记录时间
+            $log = '[Aliyun] ' . date('Y-m-d H:i:s') . ': ' . PHP_EOL;
+            // 如果失败
+            if ( $errno ) {
+                // 设置失败
+                $flag = FALSE;
+                $log .= _t('邮件发送失败, 错误代码：' . $errno . '，错误提示: ' . $error . PHP_EOL);
+            }
+            // 如果失败
+            if ( 400 <= $httpCode ) {
+                // 设置失败
+                $flag = FALSE;
+                // 尝试转换json
+                if ( $json = json_decode($result) ) {
+                    $log .= _t('邮件发送失败，错误代码：' . $json->Code . '，错误提示：' . $json->Message . PHP_EOL);
+                } else {
+                    $log .= _t('邮件发送失败, 请求返回HTTP Code：' . $httpCode . PHP_EOL);
+                }
+            }
+            // 记录返回值
+            $log .= _t('邮件发送返回数据：' . serialize($result) . PHP_EOL);
+            // 输出分隔
+            $log .= '-------------------------------------------' . PHP_EOL . PHP_EOL . PHP_EOL;
+            // 写入文件
+            file_put_contents(__DIR__ . '/debug.txt', $log, FILE_APPEND);
+        }
+        // 返回结果
+        return $flag;
+    }
+    
+    /**
+     * SMTP邮件发送
+     *
+     * @static
+     * @access public
+     *
+     * @param array $param 公共参数
+     *
+     * @return bool
+     * @throws Typecho_Plugin_Exception
+     * @throws \PHPMailer\PHPMailer\Exception
+     */
+    static public function smtp($param)
+    {
+        // 载入PHPMailer
+        if ( !class_exists('PHPMailer\PHPMailer\PHPMailer') ) {
+            require dirname(__FILE__) . '/lib/PHPMailer.php';
+        }
+        // 载入SMTP
+        if ( !class_exists('PHPMailer\PHPMailer\SMTP') ) {
+            require dirname(__FILE__) . '/lib/SMTP.php';
+        }
+        // 载入Exception
+        if ( !class_exists('PHPMaile\PHPMailer\Exception') ) {
+            require dirname(__FILE__) . '/lib/Exception.php';
+        }
+        
+        // 初始化PHPMailer
+        $mail = new PHPMailer\PHPMailer\PHPMailer(FALSE);
+        // 设置编码
+        $mail->CharSet = 'UTF-8';
+        // 启用SMTP
+        $mail->isSMTP();
+        // SMTP地址
+        $mail->Host = $param['smtp_host'];
+        // SMTP端口
+        $mail->Port = $param['smtp_port'] ?: 25;
+        // SMTP用户名
+        $mail->Username = $param['smtp_user'];
+        // SMTP密码
+        $mail->Password = $param['smtp_pass'];
+        // 是否需要验证
+        if ( in_array('enable', $param['smtp_auth']) ) {
+            // 开启验证
+            $mail->SMTPAuth = TRUE;
+        }
+        // 加密模式
+        if ( 'none' != $param['smtp_secure'] ) {
+            // 设置加密模式
+            $mail->SMTPSecure = $param['smtp_secure'];
+        }
+        // 发件人信息
+        $mail->setFrom($param['from'], $param['fromName']);
+        // 回信信息
+        $mail->addReplyTo($param['replyTo'], $param['fromName']);
+        // 收件地址
+        $mail->addAddress($param['to']);
+        // HTML格式
+        $mail->isHTML(TRUE);
+        // Debug级别
+        $mail->SMTPDebug = 4;
+        // 邮件标题
+        $mail->Subject = $param['subject'];
+        // 邮件内容
+        $mail->msgHTML($param['html']);
+        // 获取插件配置
+        $plugin = Helper::options()->plugin('LoveKKComment');
+        // 发送邮件
+        $result = $mail->send();
+        // 如果开启了Debug
+        if ( in_array('enable', $plugin->public_debug) ) {
+            // 记录时间
+            $log = '[SMTP] ' . date('Y-m-d H:i:s') . ': ' . PHP_EOL;
+            $log .= 'data: ' . serialize($param) . PHP_EOL . PHP_EOL;
+            // 记录返回值及PHPMailer错误
+            $log .= _t('邮件发送返回数据：' . serialize($result) . '; 错误信息: ' . $mail->ErrorInfo . PHP_EOL);
+            // 输出分隔
+            $log .= '-------------------------------------------' . PHP_EOL . PHP_EOL . PHP_EOL;
+            // 写入文件
+            file_put_contents(__DIR__ . '/debug.txt', $log, FILE_APPEND);
+        }
+        // 结果
+        return $result;
+    }
+    
+    /**
+     * 添加找回密码链接
+     */
+    static public function forgetLink()
+    {
+        // 获取系统配置选项
+        $options = Helper::options();
+        // 获取插件配置
+        $plugin = $options->plugin('LoveKKComment');
+        // 如果开启了密码找回
+        if ( in_array('enable', $plugin->public_forget) ) {
+            // 初始化request对象
+            $request = Typecho_Request::getInstance();
+            // 获取当前请求
+            $pathinfo = $request->getRequestUrl();
+            // 如果是登录页面则添加忘记密码链接
+            if ( preg_match('/\/login\.php/i', $pathinfo) ) {
+                ?>
+                <script>
+                    var forget = document.createElement('a');
+                    forget.href = '<?php echo Typecho_Common::url('/action/lovekkcomment?forget', Helper::options()->index);?>';
+                    var text = document.createTextNode('<?php _e('忘记密码');?>');
+                    forget.appendChild(text);
+                    document.getElementsByClassName('more-link')[0].appendChild(forget);
+                </script>
+                <?php
+            }
+        }
+    }
+    
+    /**
+     * 获取Widget对象
+     *
+     * @static
+     * @access private
+     *
+     * @param string $table 数据表名
+     * @param string $key   查询关键字
+     * @param mixed  $val   数据数据
+     *
+     * @return mixed
+     * @throws Typecho_Db_Exception
+     */
+    static private function getWidget($table, $key, $val)
+    {
+        // 类名称
+        $className = 'Widget_Abstract_' . $table;
+        // 初始化数据库
+        $db = Typecho_Db::get();
+        // 初始化类
+        $widget = new $className(Typecho_Request::getInstance(), Typecho_Widget_Helper_Empty::getInstance());
+        // 查询数据
+        $db->fetchRow($widget->select()->where($key . ' = ?', $val)->limit(1), array($widget, 'push'));
+        
+        return $widget;
+    }
+    
+    /**
+     * 阿里云签名
+     *
+     * @static
+     * @access private
+     *
+     * @param array  $param        签名参数
+     * @param string $accesssecret 秘钥
+     *
+     * @return string
+     */
+    static private function sign($param, $accesssecret)
+    {
+        // 参数排序
+        ksort($param);
+        // 组合基础
+        $stringToSign = 'POST&' . self::percentEncode('/') . '&';
+        // 临时变量
+        $tmp = '';
+        // 循环参数列表
+        foreach ( $param as $k => $v ) {
+            // 组合参数
+            $tmp .= '&' . self::percentEncode($k) . '=' . self::percentEncode($v);
+        }
+        // 去除最后一个&
+        $tmp = trim($tmp, '&');
+        // 组合签名参数
+        $stringToSign = $stringToSign . self::percentEncode($tmp);
+        // 数据签名
+        $signature = base64_encode(hash_hmac('sha1', $stringToSign, $accesssecret . '&', TRUE));
+        // 返回签名
+        return $signature;
+    }
+    
+    /**
+     * 阿里云签名编码转换
+     *
+     * @static
+     * @access private
+     *
+     * @param string $val 要转换的编码
+     *
+     * @return string|string[]|null
+     */
+    static private function percentEncode($val)
+    {
+        // URL编码
+        $res = urlencode($val);
+        // 加号转换为%20
+        $res = preg_replace('/\+/', '%20', $res);
+        // 星号转换为%2A
+        $res = preg_replace('/\*/', '%2A', $res);
+        // %7E转换为~
+        $res = preg_replace('/%7E/', '~', $res);
+        return $res;
+    }
+    
+    /**
+     * 阿里云请求参数组合
+     *
+     * @static
+     * @access private
+     *
+     * @param array $param 发送参数
+     *
+     * @return bool|string
+     */
+    static private function getPostHttpBody($param)
+    {
+        // 空字符串
+        $str = "";
+        // 循环参数
+        foreach ( $param as $k => $v ) {
+            // 组合参数
+            $str .= $k . '=' . urlencode($v) . '&';
+        }
+        // 去除第一个&
+        return substr($str, 0, -1);
+    }
+}
\ No newline at end of file
diff --git a/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/README.md b/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/README.md
new file mode 100644
index 0000000..eb54995
--- /dev/null
+++ b/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/README.md
@@ -0,0 +1,89 @@
+## 插件简介
+
+LoveKKComment是一款Typecho邮件通知类插件，支持SMTP、Send Cloud、阿里云邮件推送三种邮件通知方式。
+
+在评论审核通过、用户评论文章、用户评论被回复时对不同场景进行不同的邮件通知。
+
+## 安装方法
+
+> 1. 至[releases](https://github.com/typecho-fans/plugins/releases/tag/plugins-H_to_L)中下载最新版本插件；
+> 2. 将下载的压缩包进行解压并上传至`Typecho`插件目录中，注意目录名称更改为`LoveKKComment`；
+> 3. 后台激活插件；
+> 4. 根据自己的实际情况选择邮件发送接口方式；
+> 5. 根据所选的邮件发送接口，配置相应接口参数。
+
+## 自定义模板说明
+
+插件共有三个模板，保存在插件`theme`目录下，分别为：
+
+> 1. approved.html：邮件审核通过通知模板。
+> 2. author.html：文章评论通知作者模板。
+> 3. reply.html：评论回复通知被回复者模板。
+
+三个模板使用变量作为内容替换，您只需在自己的模板中增加相应的模板变量即可，模板变量列表如下：
+
+### approved.html
+
+> 1. {blogUrl}：博客地址
+> 2. {blogName}：博客名称
+> 3. {author}：评论者名称
+> 4. {permalink}：文章链接
+> 5. {title}：文章标题
+> 6. {text}：评论内容
+
+### author.html
+
+author.html内变量与approved.html内变量一致。
+
+### reply.html
+
+> 1. {blogUrl}：博客地址
+> 2. {blogName}：博客名称
+> 3. {author}：被回复者名称
+> 4. {permalink}：文章链接
+> 5. {title}：文章标题
+> 6. {text}：被回复者评论内容
+> 7. {replyAuthor}：回复者名称
+> 8. {replyText}：回复内容
+
+## 更新日志
+
+### 2019.01.08
+
+> 1. 新增异步回调邮件发送模式，仅在Typecho版本大于1.1/17.10.30时使用
+> 2. 新增配置验证模式，Send Cloud验证API USER及API KEY正确性，SMTP验证登录正确性，阿里云仅验证是否填写
+> 3. 与LoveKKForget插件合并，可自由开启
+> 4. 去除新版本检测功能，请使用[TeStore](http://www.yzmb.me/archives/net/testore-for-typecho)进行版本检测
+
+**修复**
+
+> Typecho的当前稳定版1.1和开发版1.2的Helper中，都有一个widgetById方法，是直接根据表名和主键获取数据对象，由于稳定版在初始化数据类时没有传入参数，导致初始化错误，引起程序报错，开发版已经修复了这个问题。
+> 而今日更新的1.0.5插件，在编写时未注意，将原本自己编写的获取数据对象方法弃用，使用官方的widgetById方法，导致了在1.1正式版中评论报错问题，2019.01.08 23:53修复此问题，若存在此问题的朋友，请下载修复后的插件，覆盖`Plugin.php`文件即可。
+
+### 2018.09.03
+
+> 由于今年备案规则，限制部分后缀域名备案，担心后续会影响网站数据，将仓库再次迁移回github.com
+
+### 2018.08.19
+
+> 1. 新增Debug模式
+> 2. 修复PHPMailer发信时的小错误
+
+### 2018.08.14
+
+> 1. 增加SMTP邮件发送方式
+> 2. 增加阿里云邮件推送发送方式
+> 3. 更改SendCloud发送方式为普通发送，不再使用模板发送
+> 4. 邮件模板更改为本地HTML模板
+> 5. 自由选择邮件发送方式
+> 6. 去除Action.php文件
+
+### 2018.08.08
+
+> 1. 修正版本检测地址
+> 2. 符合TeStore插件
+> 3. 仓库迁移
+
+### 2018.03.28
+
+> 增加评论作者通知功能（用户评论后自动发送邮件通知文章作者）
\ No newline at end of file
diff --git a/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/lib/Exception.php b/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/lib/Exception.php
new file mode 100644
index 0000000..9a05dec
--- /dev/null
+++ b/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/lib/Exception.php
@@ -0,0 +1,39 @@
+<?php
+/**
+ * PHPMailer Exception class.
+ * PHP Version 5.5.
+ *
+ * @see       https://github.com/PHPMailer/PHPMailer/ The PHPMailer GitHub project
+ *
+ * @author    Marcus Bointon (Synchro/coolbru) <phpmailer@synchromedia.co.uk>
+ * @author    Jim Jagielski (jimjag) <jimjag@gmail.com>
+ * @author    Andy Prevost (codeworxtech) <codeworxtech@users.sourceforge.net>
+ * @author    Brent R. Matzelle (original founder)
+ * @copyright 2012 - 2017 Marcus Bointon
+ * @copyright 2010 - 2012 Jim Jagielski
+ * @copyright 2004 - 2009 Andy Prevost
+ * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @note      This program is distributed in the hope that it will be useful - WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+namespace PHPMailer\PHPMailer;
+
+/**
+ * PHPMailer exception handler.
+ *
+ * @author  Marcus Bointon <phpmailer@synchromedia.co.uk>
+ */
+class Exception extends \Exception
+{
+    /**
+     * Prettify error message output.
+     *
+     * @return string
+     */
+    public function errorMessage()
+    {
+        return '<strong>' . htmlspecialchars($this->getMessage()) . "</strong><br />\n";
+    }
+}
diff --git a/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/lib/OAuth.php b/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/lib/OAuth.php
new file mode 100644
index 0000000..0bce7e3
--- /dev/null
+++ b/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/lib/OAuth.php
@@ -0,0 +1,138 @@
+<?php
+/**
+ * PHPMailer - PHP email creation and transport class.
+ * PHP Version 5.5.
+ *
+ * @see       https://github.com/PHPMailer/PHPMailer/ The PHPMailer GitHub project
+ *
+ * @author    Marcus Bointon (Synchro/coolbru) <phpmailer@synchromedia.co.uk>
+ * @author    Jim Jagielski (jimjag) <jimjag@gmail.com>
+ * @author    Andy Prevost (codeworxtech) <codeworxtech@users.sourceforge.net>
+ * @author    Brent R. Matzelle (original founder)
+ * @copyright 2012 - 2015 Marcus Bointon
+ * @copyright 2010 - 2012 Jim Jagielski
+ * @copyright 2004 - 2009 Andy Prevost
+ * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @note      This program is distributed in the hope that it will be useful - WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+namespace PHPMailer\PHPMailer;
+
+use League\OAuth2\Client\Grant\RefreshToken;
+use League\OAuth2\Client\Provider\AbstractProvider;
+use League\OAuth2\Client\Token\AccessToken;
+
+/**
+ * OAuth - OAuth2 authentication wrapper class.
+ * Uses the oauth2-client package from the League of Extraordinary Packages.
+ *
+ * @see     http://oauth2-client.thephpleague.com
+ *
+ * @author  Marcus Bointon (Synchro/coolbru) <phpmailer@synchromedia.co.uk>
+ */
+class OAuth
+{
+    /**
+     * An instance of the League OAuth Client Provider.
+     *
+     * @var AbstractProvider
+     */
+    protected $provider;
+
+    /**
+     * The current OAuth access token.
+     *
+     * @var AccessToken
+     */
+    protected $oauthToken;
+
+    /**
+     * The user's email address, usually used as the login ID
+     * and also the from address when sending email.
+     *
+     * @var string
+     */
+    protected $oauthUserEmail = '';
+
+    /**
+     * The client secret, generated in the app definition of the service you're connecting to.
+     *
+     * @var string
+     */
+    protected $oauthClientSecret = '';
+
+    /**
+     * The client ID, generated in the app definition of the service you're connecting to.
+     *
+     * @var string
+     */
+    protected $oauthClientId = '';
+
+    /**
+     * The refresh token, used to obtain new AccessTokens.
+     *
+     * @var string
+     */
+    protected $oauthRefreshToken = '';
+
+    /**
+     * OAuth constructor.
+     *
+     * @param array $options Associative array containing
+     *                       `provider`, `userName`, `clientSecret`, `clientId` and `refreshToken` elements
+     */
+    public function __construct($options)
+    {
+        $this->provider = $options['provider'];
+        $this->oauthUserEmail = $options['userName'];
+        $this->oauthClientSecret = $options['clientSecret'];
+        $this->oauthClientId = $options['clientId'];
+        $this->oauthRefreshToken = $options['refreshToken'];
+    }
+
+    /**
+     * Get a new RefreshToken.
+     *
+     * @return RefreshToken
+     */
+    protected function getGrant()
+    {
+        return new RefreshToken();
+    }
+
+    /**
+     * Get a new AccessToken.
+     *
+     * @return AccessToken
+     */
+    protected function getToken()
+    {
+        return $this->provider->getAccessToken(
+            $this->getGrant(),
+            ['refresh_token' => $this->oauthRefreshToken]
+        );
+    }
+
+    /**
+     * Generate a base64-encoded OAuth token.
+     *
+     * @return string
+     */
+    public function getOauth64()
+    {
+        // Get a new token if it's not available or has expired
+        if (null === $this->oauthToken or $this->oauthToken->hasExpired()) {
+            $this->oauthToken = $this->getToken();
+        }
+
+        return base64_encode(
+            'user=' .
+            $this->oauthUserEmail .
+            "\001auth=Bearer " .
+            $this->oauthToken .
+            "\001\001"
+        );
+    }
+}
diff --git a/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/lib/PHPMailer.php b/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/lib/PHPMailer.php
new file mode 100644
index 0000000..07466a4
--- /dev/null
+++ b/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/lib/PHPMailer.php
@@ -0,0 +1,4482 @@
+<?php
+/**
+ * PHPMailer - PHP email creation and transport class.
+ * PHP Version 5.5.
+ *
+ * @see       https://github.com/PHPMailer/PHPMailer/ The PHPMailer GitHub project
+ *
+ * @author    Marcus Bointon (Synchro/coolbru) <phpmailer@synchromedia.co.uk>
+ * @author    Jim Jagielski (jimjag) <jimjag@gmail.com>
+ * @author    Andy Prevost (codeworxtech) <codeworxtech@users.sourceforge.net>
+ * @author    Brent R. Matzelle (original founder)
+ * @copyright 2012 - 2017 Marcus Bointon
+ * @copyright 2010 - 2012 Jim Jagielski
+ * @copyright 2004 - 2009 Andy Prevost
+ * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @note      This program is distributed in the hope that it will be useful - WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+namespace PHPMailer\PHPMailer;
+
+/**
+ * PHPMailer - PHP email creation and transport class.
+ *
+ * @author  Marcus Bointon (Synchro/coolbru) <phpmailer@synchromedia.co.uk>
+ * @author  Jim Jagielski (jimjag) <jimjag@gmail.com>
+ * @author  Andy Prevost (codeworxtech) <codeworxtech@users.sourceforge.net>
+ * @author  Brent R. Matzelle (original founder)
+ */
+class PHPMailer
+{
+    const CHARSET_ISO88591 = 'iso-8859-1';
+    const CHARSET_UTF8 = 'utf-8';
+
+    const CONTENT_TYPE_PLAINTEXT = 'text/plain';
+    const CONTENT_TYPE_TEXT_CALENDAR = 'text/calendar';
+    const CONTENT_TYPE_TEXT_HTML = 'text/html';
+    const CONTENT_TYPE_MULTIPART_ALTERNATIVE = 'multipart/alternative';
+    const CONTENT_TYPE_MULTIPART_MIXED = 'multipart/mixed';
+    const CONTENT_TYPE_MULTIPART_RELATED = 'multipart/related';
+
+    const ENCODING_7BIT = '7bit';
+    const ENCODING_8BIT = '8bit';
+    const ENCODING_BASE64 = 'base64';
+    const ENCODING_BINARY = 'binary';
+    const ENCODING_QUOTED_PRINTABLE = 'quoted-printable';
+
+    /**
+     * Email priority.
+     * Options: null (default), 1 = High, 3 = Normal, 5 = low.
+     * When null, the header is not set at all.
+     *
+     * @var int
+     */
+    public $Priority;
+
+    /**
+     * The character set of the message.
+     *
+     * @var string
+     */
+    public $CharSet = self::CHARSET_ISO88591;
+
+    /**
+     * The MIME Content-type of the message.
+     *
+     * @var string
+     */
+    public $ContentType = self::CONTENT_TYPE_PLAINTEXT;
+
+    /**
+     * The message encoding.
+     * Options: "8bit", "7bit", "binary", "base64", and "quoted-printable".
+     *
+     * @var string
+     */
+    public $Encoding = self::ENCODING_8BIT;
+
+    /**
+     * Holds the most recent mailer error message.
+     *
+     * @var string
+     */
+    public $ErrorInfo = '';
+
+    /**
+     * The From email address for the message.
+     *
+     * @var string
+     */
+    public $From = 'root@localhost';
+
+    /**
+     * The From name of the message.
+     *
+     * @var string
+     */
+    public $FromName = 'Root User';
+
+    /**
+     * The envelope sender of the message.
+     * This will usually be turned into a Return-Path header by the receiver,
+     * and is the address that bounces will be sent to.
+     * If not empty, will be passed via `-f` to sendmail or as the 'MAIL FROM' value over SMTP.
+     *
+     * @var string
+     */
+    public $Sender = '';
+
+    /**
+     * The Subject of the message.
+     *
+     * @var string
+     */
+    public $Subject = '';
+
+    /**
+     * An HTML or plain text message body.
+     * If HTML then call isHTML(true).
+     *
+     * @var string
+     */
+    public $Body = '';
+
+    /**
+     * The plain-text message body.
+     * This body can be read by mail clients that do not have HTML email
+     * capability such as mutt & Eudora.
+     * Clients that can read HTML will view the normal Body.
+     *
+     * @var string
+     */
+    public $AltBody = '';
+
+    /**
+     * An iCal message part body.
+     * Only supported in simple alt or alt_inline message types
+     * To generate iCal event structures, use classes like EasyPeasyICS or iCalcreator.
+     *
+     * @see http://sprain.ch/blog/downloads/php-class-easypeasyics-create-ical-files-with-php/
+     * @see http://kigkonsult.se/iCalcreator/
+     *
+     * @var string
+     */
+    public $Ical = '';
+
+    /**
+     * The complete compiled MIME message body.
+     *
+     * @var string
+     */
+    protected $MIMEBody = '';
+
+    /**
+     * The complete compiled MIME message headers.
+     *
+     * @var string
+     */
+    protected $MIMEHeader = '';
+
+    /**
+     * Extra headers that createHeader() doesn't fold in.
+     *
+     * @var string
+     */
+    protected $mailHeader = '';
+
+    /**
+     * Word-wrap the message body to this number of chars.
+     * Set to 0 to not wrap. A useful value here is 78, for RFC2822 section 2.1.1 compliance.
+     *
+     * @see static::STD_LINE_LENGTH
+     *
+     * @var int
+     */
+    public $WordWrap = 0;
+
+    /**
+     * Which method to use to send mail.
+     * Options: "mail", "sendmail", or "smtp".
+     *
+     * @var string
+     */
+    public $Mailer = 'mail';
+
+    /**
+     * The path to the sendmail program.
+     *
+     * @var string
+     */
+    public $Sendmail = '/usr/sbin/sendmail';
+
+    /**
+     * Whether mail() uses a fully sendmail-compatible MTA.
+     * One which supports sendmail's "-oi -f" options.
+     *
+     * @var bool
+     */
+    public $UseSendmailOptions = true;
+
+    /**
+     * The email address that a reading confirmation should be sent to, also known as read receipt.
+     *
+     * @var string
+     */
+    public $ConfirmReadingTo = '';
+
+    /**
+     * The hostname to use in the Message-ID header and as default HELO string.
+     * If empty, PHPMailer attempts to find one with, in order,
+     * $_SERVER['SERVER_NAME'], gethostname(), php_uname('n'), or the value
+     * 'localhost.localdomain'.
+     *
+     * @var string
+     */
+    public $Hostname = '';
+
+    /**
+     * An ID to be used in the Message-ID header.
+     * If empty, a unique id will be generated.
+     * You can set your own, but it must be in the format "<id@domain>",
+     * as defined in RFC5322 section 3.6.4 or it will be ignored.
+     *
+     * @see https://tools.ietf.org/html/rfc5322#section-3.6.4
+     *
+     * @var string
+     */
+    public $MessageID = '';
+
+    /**
+     * The message Date to be used in the Date header.
+     * If empty, the current date will be added.
+     *
+     * @var string
+     */
+    public $MessageDate = '';
+
+    /**
+     * SMTP hosts.
+     * Either a single hostname or multiple semicolon-delimited hostnames.
+     * You can also specify a different port
+     * for each host by using this format: [hostname:port]
+     * (e.g. "smtp1.example.com:25;smtp2.example.com").
+     * You can also specify encryption type, for example:
+     * (e.g. "tls://smtp1.example.com:587;ssl://smtp2.example.com:465").
+     * Hosts will be tried in order.
+     *
+     * @var string
+     */
+    public $Host = 'localhost';
+
+    /**
+     * The default SMTP server port.
+     *
+     * @var int
+     */
+    public $Port = 25;
+
+    /**
+     * The SMTP HELO of the message.
+     * Default is $Hostname. If $Hostname is empty, PHPMailer attempts to find
+     * one with the same method described above for $Hostname.
+     *
+     * @see PHPMailer::$Hostname
+     *
+     * @var string
+     */
+    public $Helo = '';
+
+    /**
+     * What kind of encryption to use on the SMTP connection.
+     * Options: '', 'ssl' or 'tls'.
+     *
+     * @var string
+     */
+    public $SMTPSecure = '';
+
+    /**
+     * Whether to enable TLS encryption automatically if a server supports it,
+     * even if `SMTPSecure` is not set to 'tls'.
+     * Be aware that in PHP >= 5.6 this requires that the server's certificates are valid.
+     *
+     * @var bool
+     */
+    public $SMTPAutoTLS = true;
+
+    /**
+     * Whether to use SMTP authentication.
+     * Uses the Username and Password properties.
+     *
+     * @see PHPMailer::$Username
+     * @see PHPMailer::$Password
+     *
+     * @var bool
+     */
+    public $SMTPAuth = false;
+
+    /**
+     * Options array passed to stream_context_create when connecting via SMTP.
+     *
+     * @var array
+     */
+    public $SMTPOptions = [];
+
+    /**
+     * SMTP username.
+     *
+     * @var string
+     */
+    public $Username = '';
+
+    /**
+     * SMTP password.
+     *
+     * @var string
+     */
+    public $Password = '';
+
+    /**
+     * SMTP auth type.
+     * Options are CRAM-MD5, LOGIN, PLAIN, XOAUTH2, attempted in that order if not specified.
+     *
+     * @var string
+     */
+    public $AuthType = '';
+
+    /**
+     * An instance of the PHPMailer OAuth class.
+     *
+     * @var OAuth
+     */
+    protected $oauth;
+
+    /**
+     * The SMTP server timeout in seconds.
+     * Default of 5 minutes (300sec) is from RFC2821 section 4.5.3.2.
+     *
+     * @var int
+     */
+    public $Timeout = 300;
+
+    /**
+     * SMTP class debug output mode.
+     * Debug output level.
+     * Options:
+     * * `0` No output
+     * * `1` Commands
+     * * `2` Data and commands
+     * * `3` As 2 plus connection status
+     * * `4` Low-level data output.
+     *
+     * @see SMTP::$do_debug
+     *
+     * @var int
+     */
+    public $SMTPDebug = 0;
+
+    /**
+     * How to handle debug output.
+     * Options:
+     * * `echo` Output plain-text as-is, appropriate for CLI
+     * * `html` Output escaped, line breaks converted to `<br>`, appropriate for browser output
+     * * `error_log` Output to error log as configured in php.ini
+     * By default PHPMailer will use `echo` if run from a `cli` or `cli-server` SAPI, `html` otherwise.
+     * Alternatively, you can provide a callable expecting two params: a message string and the debug level:
+     *
+     * ```php
+     * $mail->Debugoutput = function($str, $level) {echo "debug level $level; message: $str";};
+     * ```
+     *
+     * Alternatively, you can pass in an instance of a PSR-3 compatible logger, though only `debug`
+     * level output is used:
+     *
+     * ```php
+     * $mail->Debugoutput = new myPsr3Logger;
+     * ```
+     *
+     * @see SMTP::$Debugoutput
+     *
+     * @var string|callable|\Psr\Log\LoggerInterface
+     */
+    public $Debugoutput = 'echo';
+
+    /**
+     * Whether to keep SMTP connection open after each message.
+     * If this is set to true then to close the connection
+     * requires an explicit call to smtpClose().
+     *
+     * @var bool
+     */
+    public $SMTPKeepAlive = false;
+
+    /**
+     * Whether to split multiple to addresses into multiple messages
+     * or send them all in one message.
+     * Only supported in `mail` and `sendmail` transports, not in SMTP.
+     *
+     * @var bool
+     */
+    public $SingleTo = false;
+
+    /**
+     * Storage for addresses when SingleTo is enabled.
+     *
+     * @var array
+     */
+    protected $SingleToArray = [];
+
+    /**
+     * Whether to generate VERP addresses on send.
+     * Only applicable when sending via SMTP.
+     *
+     * @see https://en.wikipedia.org/wiki/Variable_envelope_return_path
+     * @see http://www.postfix.org/VERP_README.html Postfix VERP info
+     *
+     * @var bool
+     */
+    public $do_verp = false;
+
+    /**
+     * Whether to allow sending messages with an empty body.
+     *
+     * @var bool
+     */
+    public $AllowEmpty = false;
+
+    /**
+     * DKIM selector.
+     *
+     * @var string
+     */
+    public $DKIM_selector = '';
+
+    /**
+     * DKIM Identity.
+     * Usually the email address used as the source of the email.
+     *
+     * @var string
+     */
+    public $DKIM_identity = '';
+
+    /**
+     * DKIM passphrase.
+     * Used if your key is encrypted.
+     *
+     * @var string
+     */
+    public $DKIM_passphrase = '';
+
+    /**
+     * DKIM signing domain name.
+     *
+     * @example 'example.com'
+     *
+     * @var string
+     */
+    public $DKIM_domain = '';
+
+    /**
+     * DKIM Copy header field values for diagnostic use.
+     *
+     * @var bool
+     */
+    public $DKIM_copyHeaderFields = true;
+
+    /**
+     * DKIM Extra signing headers.
+     *
+     * @example ['List-Unsubscribe', 'List-Help']
+     *
+     * @var array
+     */
+    public $DKIM_extraHeaders = [];
+
+    /**
+     * DKIM private key file path.
+     *
+     * @var string
+     */
+    public $DKIM_private = '';
+
+    /**
+     * DKIM private key string.
+     *
+     * If set, takes precedence over `$DKIM_private`.
+     *
+     * @var string
+     */
+    public $DKIM_private_string = '';
+
+    /**
+     * Callback Action function name.
+     *
+     * The function that handles the result of the send email action.
+     * It is called out by send() for each email sent.
+     *
+     * Value can be any php callable: http://www.php.net/is_callable
+     *
+     * Parameters:
+     *   bool $result        result of the send action
+     *   array   $to            email addresses of the recipients
+     *   array   $cc            cc email addresses
+     *   array   $bcc           bcc email addresses
+     *   string  $subject       the subject
+     *   string  $body          the email body
+     *   string  $from          email address of sender
+     *   string  $extra         extra information of possible use
+     *                          "smtp_transaction_id' => last smtp transaction id
+     *
+     * @var string
+     */
+    public $action_function = '';
+
+    /**
+     * What to put in the X-Mailer header.
+     * Options: An empty string for PHPMailer default, whitespace for none, or a string to use.
+     *
+     * @var string
+     */
+    public $XMailer = '';
+
+    /**
+     * Which validator to use by default when validating email addresses.
+     * May be a callable to inject your own validator, but there are several built-in validators.
+     * The default validator uses PHP's FILTER_VALIDATE_EMAIL filter_var option.
+     *
+     * @see PHPMailer::validateAddress()
+     *
+     * @var string|callable
+     */
+    public static $validator = 'php';
+
+    /**
+     * An instance of the SMTP sender class.
+     *
+     * @var SMTP
+     */
+    protected $smtp;
+
+    /**
+     * The array of 'to' names and addresses.
+     *
+     * @var array
+     */
+    protected $to = [];
+
+    /**
+     * The array of 'cc' names and addresses.
+     *
+     * @var array
+     */
+    protected $cc = [];
+
+    /**
+     * The array of 'bcc' names and addresses.
+     *
+     * @var array
+     */
+    protected $bcc = [];
+
+    /**
+     * The array of reply-to names and addresses.
+     *
+     * @var array
+     */
+    protected $ReplyTo = [];
+
+    /**
+     * An array of all kinds of addresses.
+     * Includes all of $to, $cc, $bcc.
+     *
+     * @see PHPMailer::$to
+     * @see PHPMailer::$cc
+     * @see PHPMailer::$bcc
+     *
+     * @var array
+     */
+    protected $all_recipients = [];
+
+    /**
+     * An array of names and addresses queued for validation.
+     * In send(), valid and non duplicate entries are moved to $all_recipients
+     * and one of $to, $cc, or $bcc.
+     * This array is used only for addresses with IDN.
+     *
+     * @see PHPMailer::$to
+     * @see PHPMailer::$cc
+     * @see PHPMailer::$bcc
+     * @see PHPMailer::$all_recipients
+     *
+     * @var array
+     */
+    protected $RecipientsQueue = [];
+
+    /**
+     * An array of reply-to names and addresses queued for validation.
+     * In send(), valid and non duplicate entries are moved to $ReplyTo.
+     * This array is used only for addresses with IDN.
+     *
+     * @see PHPMailer::$ReplyTo
+     *
+     * @var array
+     */
+    protected $ReplyToQueue = [];
+
+    /**
+     * The array of attachments.
+     *
+     * @var array
+     */
+    protected $attachment = [];
+
+    /**
+     * The array of custom headers.
+     *
+     * @var array
+     */
+    protected $CustomHeader = [];
+
+    /**
+     * The most recent Message-ID (including angular brackets).
+     *
+     * @var string
+     */
+    protected $lastMessageID = '';
+
+    /**
+     * The message's MIME type.
+     *
+     * @var string
+     */
+    protected $message_type = '';
+
+    /**
+     * The array of MIME boundary strings.
+     *
+     * @var array
+     */
+    protected $boundary = [];
+
+    /**
+     * The array of available languages.
+     *
+     * @var array
+     */
+    protected $language = [];
+
+    /**
+     * The number of errors encountered.
+     *
+     * @var int
+     */
+    protected $error_count = 0;
+
+    /**
+     * The S/MIME certificate file path.
+     *
+     * @var string
+     */
+    protected $sign_cert_file = '';
+
+    /**
+     * The S/MIME key file path.
+     *
+     * @var string
+     */
+    protected $sign_key_file = '';
+
+    /**
+     * The optional S/MIME extra certificates ("CA Chain") file path.
+     *
+     * @var string
+     */
+    protected $sign_extracerts_file = '';
+
+    /**
+     * The S/MIME password for the key.
+     * Used only if the key is encrypted.
+     *
+     * @var string
+     */
+    protected $sign_key_pass = '';
+
+    /**
+     * Whether to throw exceptions for errors.
+     *
+     * @var bool
+     */
+    protected $exceptions = false;
+
+    /**
+     * Unique ID used for message ID and boundaries.
+     *
+     * @var string
+     */
+    protected $uniqueid = '';
+
+    /**
+     * The PHPMailer Version number.
+     *
+     * @var string
+     */
+    const VERSION = '6.0.5';
+
+    /**
+     * Error severity: message only, continue processing.
+     *
+     * @var int
+     */
+    const STOP_MESSAGE = 0;
+
+    /**
+     * Error severity: message, likely ok to continue processing.
+     *
+     * @var int
+     */
+    const STOP_CONTINUE = 1;
+
+    /**
+     * Error severity: message, plus full stop, critical error reached.
+     *
+     * @var int
+     */
+    const STOP_CRITICAL = 2;
+
+    /**
+     * SMTP RFC standard line ending.
+     *
+     * @var string
+     */
+    protected static $LE = "\r\n";
+
+    /**
+     * The maximum line length allowed by RFC 2822 section 2.1.1.
+     *
+     * @var int
+     */
+    const MAX_LINE_LENGTH = 998;
+
+    /**
+     * The lower maximum line length allowed by RFC 2822 section 2.1.1.
+     * This length does NOT include the line break
+     * 76 means that lines will be 77 or 78 chars depending on whether
+     * the line break format is LF or CRLF; both are valid.
+     *
+     * @var int
+     */
+    const STD_LINE_LENGTH = 76;
+
+    /**
+     * Constructor.
+     *
+     * @param bool $exceptions Should we throw external exceptions?
+     */
+    public function __construct($exceptions = null)
+    {
+        if (null !== $exceptions) {
+            $this->exceptions = (bool) $exceptions;
+        }
+        //Pick an appropriate debug output format automatically
+        $this->Debugoutput = (strpos(PHP_SAPI, 'cli') !== false ? 'echo' : 'html');
+    }
+
+    /**
+     * Destructor.
+     */
+    public function __destruct()
+    {
+        //Close any open SMTP connection nicely
+        $this->smtpClose();
+    }
+
+    /**
+     * Call mail() in a safe_mode-aware fashion.
+     * Also, unless sendmail_path points to sendmail (or something that
+     * claims to be sendmail), don't pass params (not a perfect fix,
+     * but it will do).
+     *
+     * @param string      $to      To
+     * @param string      $subject Subject
+     * @param string      $body    Message Body
+     * @param string      $header  Additional Header(s)
+     * @param string|null $params  Params
+     *
+     * @return bool
+     */
+    private function mailPassthru($to, $subject, $body, $header, $params)
+    {
+        //Check overloading of mail function to avoid double-encoding
+        if (ini_get('mbstring.func_overload') & 1) {
+            $subject = $this->secureHeader($subject);
+        } else {
+            $subject = $this->encodeHeader($this->secureHeader($subject));
+        }
+        //Calling mail() with null params breaks
+        if (!$this->UseSendmailOptions or null === $params) {
+            $result = @mail($to, $subject, $body, $header);
+        } else {
+            $result = @mail($to, $subject, $body, $header, $params);
+        }
+
+        return $result;
+    }
+
+    /**
+     * Output debugging info via user-defined method.
+     * Only generates output if SMTP debug output is enabled (@see SMTP::$do_debug).
+     *
+     * @see PHPMailer::$Debugoutput
+     * @see PHPMailer::$SMTPDebug
+     *
+     * @param string $str
+     */
+    protected function edebug($str)
+    {
+        if ($this->SMTPDebug <= 0) {
+            return;
+        }
+        //Is this a PSR-3 logger?
+        if ($this->Debugoutput instanceof \Psr\Log\LoggerInterface) {
+            $this->Debugoutput->debug($str);
+
+            return;
+        }
+        //Avoid clash with built-in function names
+        if (!in_array($this->Debugoutput, ['error_log', 'html', 'echo']) and is_callable($this->Debugoutput)) {
+            call_user_func($this->Debugoutput, $str, $this->SMTPDebug);
+
+            return;
+        }
+        switch ($this->Debugoutput) {
+            case 'error_log':
+                //Don't output, just log
+                error_log($str);
+                break;
+            case 'html':
+                //Cleans up output a bit for a better looking, HTML-safe output
+                echo htmlentities(
+                    preg_replace('/[\r\n]+/', '', $str),
+                    ENT_QUOTES,
+                    'UTF-8'
+                ), "<br>\n";
+                break;
+            case 'echo':
+            default:
+                //Normalize line breaks
+                $str = preg_replace('/\r\n|\r/ms', "\n", $str);
+                echo gmdate('Y-m-d H:i:s'),
+                "\t",
+                    //Trim trailing space
+                trim(
+                //Indent for readability, except for trailing break
+                    str_replace(
+                        "\n",
+                        "\n                   \t                  ",
+                        trim($str)
+                    )
+                ),
+                "\n";
+        }
+    }
+
+    /**
+     * Sets message type to HTML or plain.
+     *
+     * @param bool $isHtml True for HTML mode
+     */
+    public function isHTML($isHtml = true)
+    {
+        if ($isHtml) {
+            $this->ContentType = static::CONTENT_TYPE_TEXT_HTML;
+        } else {
+            $this->ContentType = static::CONTENT_TYPE_PLAINTEXT;
+        }
+    }
+
+    /**
+     * Send messages using SMTP.
+     */
+    public function isSMTP()
+    {
+        $this->Mailer = 'smtp';
+    }
+
+    /**
+     * Send messages using PHP's mail() function.
+     */
+    public function isMail()
+    {
+        $this->Mailer = 'mail';
+    }
+
+    /**
+     * Send messages using $Sendmail.
+     */
+    public function isSendmail()
+    {
+        $ini_sendmail_path = ini_get('sendmail_path');
+
+        if (false === stripos($ini_sendmail_path, 'sendmail')) {
+            $this->Sendmail = '/usr/sbin/sendmail';
+        } else {
+            $this->Sendmail = $ini_sendmail_path;
+        }
+        $this->Mailer = 'sendmail';
+    }
+
+    /**
+     * Send messages using qmail.
+     */
+    public function isQmail()
+    {
+        $ini_sendmail_path = ini_get('sendmail_path');
+
+        if (false === stripos($ini_sendmail_path, 'qmail')) {
+            $this->Sendmail = '/var/qmail/bin/qmail-inject';
+        } else {
+            $this->Sendmail = $ini_sendmail_path;
+        }
+        $this->Mailer = 'qmail';
+    }
+
+    /**
+     * Add a "To" address.
+     *
+     * @param string $address The email address to send to
+     * @param string $name
+     *
+     * @return bool true on success, false if address already used or invalid in some way
+     */
+    public function addAddress($address, $name = '')
+    {
+        return $this->addOrEnqueueAnAddress('to', $address, $name);
+    }
+
+    /**
+     * Add a "CC" address.
+     *
+     * @param string $address The email address to send to
+     * @param string $name
+     *
+     * @return bool true on success, false if address already used or invalid in some way
+     */
+    public function addCC($address, $name = '')
+    {
+        return $this->addOrEnqueueAnAddress('cc', $address, $name);
+    }
+
+    /**
+     * Add a "BCC" address.
+     *
+     * @param string $address The email address to send to
+     * @param string $name
+     *
+     * @return bool true on success, false if address already used or invalid in some way
+     */
+    public function addBCC($address, $name = '')
+    {
+        return $this->addOrEnqueueAnAddress('bcc', $address, $name);
+    }
+
+    /**
+     * Add a "Reply-To" address.
+     *
+     * @param string $address The email address to reply to
+     * @param string $name
+     *
+     * @return bool true on success, false if address already used or invalid in some way
+     */
+    public function addReplyTo($address, $name = '')
+    {
+        return $this->addOrEnqueueAnAddress('Reply-To', $address, $name);
+    }
+
+    /**
+     * Add an address to one of the recipient arrays or to the ReplyTo array. Because PHPMailer
+     * can't validate addresses with an IDN without knowing the PHPMailer::$CharSet (that can still
+     * be modified after calling this function), addition of such addresses is delayed until send().
+     * Addresses that have been added already return false, but do not throw exceptions.
+     *
+     * @param string $kind    One of 'to', 'cc', 'bcc', or 'ReplyTo'
+     * @param string $address The email address to send, resp. to reply to
+     * @param string $name
+     *
+     * @throws Exception
+     *
+     * @return bool true on success, false if address already used or invalid in some way
+     */
+    protected function addOrEnqueueAnAddress($kind, $address, $name)
+    {
+        $address = trim($address);
+        $name = trim(preg_replace('/[\r\n]+/', '', $name)); //Strip breaks and trim
+        $pos = strrpos($address, '@');
+        if (false === $pos) {
+            // At-sign is missing.
+            $error_message = sprintf('%s (%s): %s',
+                $this->lang('invalid_address'),
+                $kind,
+                $address);
+            $this->setError($error_message);
+            $this->edebug($error_message);
+            if ($this->exceptions) {
+                throw new Exception($error_message);
+            }
+
+            return false;
+        }
+        $params = [$kind, $address, $name];
+        // Enqueue addresses with IDN until we know the PHPMailer::$CharSet.
+        if ($this->has8bitChars(substr($address, ++$pos)) and static::idnSupported()) {
+            if ('Reply-To' != $kind) {
+                if (!array_key_exists($address, $this->RecipientsQueue)) {
+                    $this->RecipientsQueue[$address] = $params;
+
+                    return true;
+                }
+            } else {
+                if (!array_key_exists($address, $this->ReplyToQueue)) {
+                    $this->ReplyToQueue[$address] = $params;
+
+                    return true;
+                }
+            }
+
+            return false;
+        }
+
+        // Immediately add standard addresses without IDN.
+        return call_user_func_array([$this, 'addAnAddress'], $params);
+    }
+
+    /**
+     * Add an address to one of the recipient arrays or to the ReplyTo array.
+     * Addresses that have been added already return false, but do not throw exceptions.
+     *
+     * @param string $kind    One of 'to', 'cc', 'bcc', or 'ReplyTo'
+     * @param string $address The email address to send, resp. to reply to
+     * @param string $name
+     *
+     * @throws Exception
+     *
+     * @return bool true on success, false if address already used or invalid in some way
+     */
+    protected function addAnAddress($kind, $address, $name = '')
+    {
+        if (!in_array($kind, ['to', 'cc', 'bcc', 'Reply-To'])) {
+            $error_message = sprintf('%s: %s',
+                $this->lang('Invalid recipient kind'),
+                $kind);
+            $this->setError($error_message);
+            $this->edebug($error_message);
+            if ($this->exceptions) {
+                throw new Exception($error_message);
+            }
+
+            return false;
+        }
+        if (!static::validateAddress($address)) {
+            $error_message = sprintf('%s (%s): %s',
+                $this->lang('invalid_address'),
+                $kind,
+                $address);
+            $this->setError($error_message);
+            $this->edebug($error_message);
+            if ($this->exceptions) {
+                throw new Exception($error_message);
+            }
+
+            return false;
+        }
+        if ('Reply-To' != $kind) {
+            if (!array_key_exists(strtolower($address), $this->all_recipients)) {
+                $this->{$kind}[] = [$address, $name];
+                $this->all_recipients[strtolower($address)] = true;
+
+                return true;
+            }
+        } else {
+            if (!array_key_exists(strtolower($address), $this->ReplyTo)) {
+                $this->ReplyTo[strtolower($address)] = [$address, $name];
+
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * Parse and validate a string containing one or more RFC822-style comma-separated email addresses
+     * of the form "display name <address>" into an array of name/address pairs.
+     * Uses the imap_rfc822_parse_adrlist function if the IMAP extension is available.
+     * Note that quotes in the name part are removed.
+     *
+     * @see    http://www.andrew.cmu.edu/user/agreen1/testing/mrbs/web/Mail/RFC822.php A more careful implementation
+     *
+     * @param string $addrstr The address list string
+     * @param bool   $useimap Whether to use the IMAP extension to parse the list
+     *
+     * @return array
+     */
+    public static function parseAddresses($addrstr, $useimap = true)
+    {
+        $addresses = [];
+        if ($useimap and function_exists('imap_rfc822_parse_adrlist')) {
+            //Use this built-in parser if it's available
+            $list = imap_rfc822_parse_adrlist($addrstr, '');
+            foreach ($list as $address) {
+                if ('.SYNTAX-ERROR.' != $address->host) {
+                    if (static::validateAddress($address->mailbox . '@' . $address->host)) {
+                        $addresses[] = [
+                            'name' => (property_exists($address, 'personal') ? $address->personal : ''),
+                            'address' => $address->mailbox . '@' . $address->host,
+                        ];
+                    }
+                }
+            }
+        } else {
+            //Use this simpler parser
+            $list = explode(',', $addrstr);
+            foreach ($list as $address) {
+                $address = trim($address);
+                //Is there a separate name part?
+                if (strpos($address, '<') === false) {
+                    //No separate name, just use the whole thing
+                    if (static::validateAddress($address)) {
+                        $addresses[] = [
+                            'name' => '',
+                            'address' => $address,
+                        ];
+                    }
+                } else {
+                    list($name, $email) = explode('<', $address);
+                    $email = trim(str_replace('>', '', $email));
+                    if (static::validateAddress($email)) {
+                        $addresses[] = [
+                            'name' => trim(str_replace(['"', "'"], '', $name)),
+                            'address' => $email,
+                        ];
+                    }
+                }
+            }
+        }
+
+        return $addresses;
+    }
+
+    /**
+     * Set the From and FromName properties.
+     *
+     * @param string $address
+     * @param string $name
+     * @param bool   $auto    Whether to also set the Sender address, defaults to true
+     *
+     * @throws Exception
+     *
+     * @return bool
+     */
+    public function setFrom($address, $name = '', $auto = true)
+    {
+        $address = trim($address);
+        $name = trim(preg_replace('/[\r\n]+/', '', $name)); //Strip breaks and trim
+        // Don't validate now addresses with IDN. Will be done in send().
+        $pos = strrpos($address, '@');
+        if (false === $pos or
+            (!$this->has8bitChars(substr($address, ++$pos)) or !static::idnSupported()) and
+            !static::validateAddress($address)) {
+            $error_message = sprintf('%s (From): %s',
+                $this->lang('invalid_address'),
+                $address);
+            $this->setError($error_message);
+            $this->edebug($error_message);
+            if ($this->exceptions) {
+                throw new Exception($error_message);
+            }
+
+            return false;
+        }
+        $this->From = $address;
+        $this->FromName = $name;
+        if ($auto) {
+            if (empty($this->Sender)) {
+                $this->Sender = $address;
+            }
+        }
+
+        return true;
+    }
+
+    /**
+     * Return the Message-ID header of the last email.
+     * Technically this is the value from the last time the headers were created,
+     * but it's also the message ID of the last sent message except in
+     * pathological cases.
+     *
+     * @return string
+     */
+    public function getLastMessageID()
+    {
+        return $this->lastMessageID;
+    }
+
+    /**
+     * Check that a string looks like an email address.
+     * Validation patterns supported:
+     * * `auto` Pick best pattern automatically;
+     * * `pcre8` Use the squiloople.com pattern, requires PCRE > 8.0;
+     * * `pcre` Use old PCRE implementation;
+     * * `php` Use PHP built-in FILTER_VALIDATE_EMAIL;
+     * * `html5` Use the pattern given by the HTML5 spec for 'email' type form input elements.
+     * * `noregex` Don't use a regex: super fast, really dumb.
+     * Alternatively you may pass in a callable to inject your own validator, for example:
+     *
+     * ```php
+     * PHPMailer::validateAddress('user@example.com', function($address) {
+     *     return (strpos($address, '@') !== false);
+     * });
+     * ```
+     *
+     * You can also set the PHPMailer::$validator static to a callable, allowing built-in methods to use your validator.
+     *
+     * @param string          $address       The email address to check
+     * @param string|callable $patternselect Which pattern to use
+     *
+     * @return bool
+     */
+    public static function validateAddress($address, $patternselect = null)
+    {
+        if (null === $patternselect) {
+            $patternselect = static::$validator;
+        }
+        if (is_callable($patternselect)) {
+            return call_user_func($patternselect, $address);
+        }
+        //Reject line breaks in addresses; it's valid RFC5322, but not RFC5321
+        if (strpos($address, "\n") !== false or strpos($address, "\r") !== false) {
+            return false;
+        }
+        switch ($patternselect) {
+            case 'pcre': //Kept for BC
+            case 'pcre8':
+                /*
+                 * A more complex and more permissive version of the RFC5322 regex on which FILTER_VALIDATE_EMAIL
+                 * is based.
+                 * In addition to the addresses allowed by filter_var, also permits:
+                 *  * dotless domains: `a@b`
+                 *  * comments: `1234 @ local(blah) .machine .example`
+                 *  * quoted elements: `'"test blah"@example.org'`
+                 *  * numeric TLDs: `a@b.123`
+                 *  * unbracketed IPv4 literals: `a@192.168.0.1`
+                 *  * IPv6 literals: 'first.last@[IPv6:a1::]'
+                 * Not all of these will necessarily work for sending!
+                 *
+                 * @see       http://squiloople.com/2009/12/20/email-address-validation/
+                 * @copyright 2009-2010 Michael Rushton
+                 * Feel free to use and redistribute this code. But please keep this copyright notice.
+                 */
+                return (bool) preg_match(
+                    '/^(?!(?>(?1)"?(?>\\\[ -~]|[^"])"?(?1)){255,})(?!(?>(?1)"?(?>\\\[ -~]|[^"])"?(?1)){65,}@)' .
+                    '((?>(?>(?>((?>(?>(?>\x0D\x0A)?[\t ])+|(?>[\t ]*\x0D\x0A)?[\t ]+)?)(\((?>(?2)' .
+                    '(?>[\x01-\x08\x0B\x0C\x0E-\'*-\[\]-\x7F]|\\\[\x00-\x7F]|(?3)))*(?2)\)))+(?2))|(?2))?)' .
+                    '([!#-\'*+\/-9=?^-~-]+|"(?>(?2)(?>[\x01-\x08\x0B\x0C\x0E-!#-\[\]-\x7F]|\\\[\x00-\x7F]))*' .
+                    '(?2)")(?>(?1)\.(?1)(?4))*(?1)@(?!(?1)[a-z0-9-]{64,})(?1)(?>([a-z0-9](?>[a-z0-9-]*[a-z0-9])?)' .
+                    '(?>(?1)\.(?!(?1)[a-z0-9-]{64,})(?1)(?5)){0,126}|\[(?:(?>IPv6:(?>([a-f0-9]{1,4})(?>:(?6)){7}' .
+                    '|(?!(?:.*[a-f0-9][:\]]){8,})((?6)(?>:(?6)){0,6})?::(?7)?))|(?>(?>IPv6:(?>(?6)(?>:(?6)){5}:' .
+                    '|(?!(?:.*[a-f0-9]:){6,})(?8)?::(?>((?6)(?>:(?6)){0,4}):)?))?(25[0-5]|2[0-4][0-9]|1[0-9]{2}' .
+                    '|[1-9]?[0-9])(?>\.(?9)){3}))\])(?1)$/isD',
+                    $address
+                );
+            case 'html5':
+                /*
+                 * This is the pattern used in the HTML5 spec for validation of 'email' type form input elements.
+                 *
+                 * @see http://www.whatwg.org/specs/web-apps/current-work/#e-mail-state-(type=email)
+                 */
+                return (bool) preg_match(
+                    '/^[a-zA-Z0-9.!#$%&\'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}' .
+                    '[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/sD',
+                    $address
+                );
+            case 'php':
+            default:
+                return (bool) filter_var($address, FILTER_VALIDATE_EMAIL);
+        }
+    }
+
+    /**
+     * Tells whether IDNs (Internationalized Domain Names) are supported or not. This requires the
+     * `intl` and `mbstring` PHP extensions.
+     *
+     * @return bool `true` if required functions for IDN support are present
+     */
+    public static function idnSupported()
+    {
+        return function_exists('idn_to_ascii') and function_exists('mb_convert_encoding');
+    }
+
+    /**
+     * Converts IDN in given email address to its ASCII form, also known as punycode, if possible.
+     * Important: Address must be passed in same encoding as currently set in PHPMailer::$CharSet.
+     * This function silently returns unmodified address if:
+     * - No conversion is necessary (i.e. domain name is not an IDN, or is already in ASCII form)
+     * - Conversion to punycode is impossible (e.g. required PHP functions are not available)
+     *   or fails for any reason (e.g. domain contains characters not allowed in an IDN).
+     *
+     * @see    PHPMailer::$CharSet
+     *
+     * @param string $address The email address to convert
+     *
+     * @return string The encoded address in ASCII form
+     */
+    public function punyencodeAddress($address)
+    {
+        // Verify we have required functions, CharSet, and at-sign.
+        $pos = strrpos($address, '@');
+        if (static::idnSupported() and
+            !empty($this->CharSet) and
+            false !== $pos
+        ) {
+            $domain = substr($address, ++$pos);
+            // Verify CharSet string is a valid one, and domain properly encoded in this CharSet.
+            if ($this->has8bitChars($domain) and @mb_check_encoding($domain, $this->CharSet)) {
+                $domain = mb_convert_encoding($domain, 'UTF-8', $this->CharSet);
+                //Ignore IDE complaints about this line - method signature changed in PHP 5.4
+                $errorcode = 0;
+                $punycode = idn_to_ascii($domain, $errorcode, INTL_IDNA_VARIANT_UTS46);
+                if (false !== $punycode) {
+                    return substr($address, 0, $pos) . $punycode;
+                }
+            }
+        }
+
+        return $address;
+    }
+
+    /**
+     * Create a message and send it.
+     * Uses the sending method specified by $Mailer.
+     *
+     * @throws Exception
+     *
+     * @return bool false on error - See the ErrorInfo property for details of the error
+     */
+    public function send()
+    {
+        try {
+            if (!$this->preSend()) {
+                return false;
+            }
+
+            return $this->postSend();
+        } catch (Exception $exc) {
+            $this->mailHeader = '';
+            $this->setError($exc->getMessage());
+            if ($this->exceptions) {
+                throw $exc;
+            }
+
+            return false;
+        }
+    }
+
+    /**
+     * Prepare a message for sending.
+     *
+     * @throws Exception
+     *
+     * @return bool
+     */
+    public function preSend()
+    {
+        if ('smtp' == $this->Mailer or
+            ('mail' == $this->Mailer and stripos(PHP_OS, 'WIN') === 0)
+        ) {
+            //SMTP mandates RFC-compliant line endings
+            //and it's also used with mail() on Windows
+            static::setLE("\r\n");
+        } else {
+            //Maintain backward compatibility with legacy Linux command line mailers
+            static::setLE(PHP_EOL);
+        }
+        //Check for buggy PHP versions that add a header with an incorrect line break
+        if (ini_get('mail.add_x_header') == 1
+            and 'mail' == $this->Mailer
+            and stripos(PHP_OS, 'WIN') === 0
+            and ((version_compare(PHP_VERSION, '7.0.0', '>=')
+                    and version_compare(PHP_VERSION, '7.0.17', '<'))
+                or (version_compare(PHP_VERSION, '7.1.0', '>=')
+                    and version_compare(PHP_VERSION, '7.1.3', '<')))
+        ) {
+            trigger_error(
+                'Your version of PHP is affected by a bug that may result in corrupted messages.' .
+                ' To fix it, switch to sending using SMTP, disable the mail.add_x_header option in' .
+                ' your php.ini, switch to MacOS or Linux, or upgrade your PHP to version 7.0.17+ or 7.1.3+.',
+                E_USER_WARNING
+            );
+        }
+
+        try {
+            $this->error_count = 0; // Reset errors
+            $this->mailHeader = '';
+
+            // Dequeue recipient and Reply-To addresses with IDN
+            foreach (array_merge($this->RecipientsQueue, $this->ReplyToQueue) as $params) {
+                $params[1] = $this->punyencodeAddress($params[1]);
+                call_user_func_array([$this, 'addAnAddress'], $params);
+            }
+            if (count($this->to) + count($this->cc) + count($this->bcc) < 1) {
+                throw new Exception($this->lang('provide_address'), self::STOP_CRITICAL);
+            }
+
+            // Validate From, Sender, and ConfirmReadingTo addresses
+            foreach (['From', 'Sender', 'ConfirmReadingTo'] as $address_kind) {
+                $this->$address_kind = trim($this->$address_kind);
+                if (empty($this->$address_kind)) {
+                    continue;
+                }
+                $this->$address_kind = $this->punyencodeAddress($this->$address_kind);
+                if (!static::validateAddress($this->$address_kind)) {
+                    $error_message = sprintf('%s (%s): %s',
+                        $this->lang('invalid_address'),
+                        $address_kind,
+                        $this->$address_kind);
+                    $this->setError($error_message);
+                    $this->edebug($error_message);
+                    if ($this->exceptions) {
+                        throw new Exception($error_message);
+                    }
+
+                    return false;
+                }
+            }
+
+            // Set whether the message is multipart/alternative
+            if ($this->alternativeExists()) {
+                $this->ContentType = static::CONTENT_TYPE_MULTIPART_ALTERNATIVE;
+            }
+
+            $this->setMessageType();
+            // Refuse to send an empty message unless we are specifically allowing it
+            if (!$this->AllowEmpty and empty($this->Body)) {
+                throw new Exception($this->lang('empty_message'), self::STOP_CRITICAL);
+            }
+
+            //Trim subject consistently
+            $this->Subject = trim($this->Subject);
+            // Create body before headers in case body makes changes to headers (e.g. altering transfer encoding)
+            $this->MIMEHeader = '';
+            $this->MIMEBody = $this->createBody();
+            // createBody may have added some headers, so retain them
+            $tempheaders = $this->MIMEHeader;
+            $this->MIMEHeader = $this->createHeader();
+            $this->MIMEHeader .= $tempheaders;
+
+            // To capture the complete message when using mail(), create
+            // an extra header list which createHeader() doesn't fold in
+            if ('mail' == $this->Mailer) {
+                if (count($this->to) > 0) {
+                    $this->mailHeader .= $this->addrAppend('To', $this->to);
+                } else {
+                    $this->mailHeader .= $this->headerLine('To', 'undisclosed-recipients:;');
+                }
+                $this->mailHeader .= $this->headerLine(
+                    'Subject',
+                    $this->encodeHeader($this->secureHeader($this->Subject))
+                );
+            }
+
+            // Sign with DKIM if enabled
+            if (!empty($this->DKIM_domain)
+                and !empty($this->DKIM_selector)
+                and (!empty($this->DKIM_private_string)
+                    or (!empty($this->DKIM_private) and file_exists($this->DKIM_private))
+                )
+            ) {
+                $header_dkim = $this->DKIM_Add(
+                    $this->MIMEHeader . $this->mailHeader,
+                    $this->encodeHeader($this->secureHeader($this->Subject)),
+                    $this->MIMEBody
+                );
+                $this->MIMEHeader = rtrim($this->MIMEHeader, "\r\n ") . static::$LE .
+                    static::normalizeBreaks($header_dkim) . static::$LE;
+            }
+
+            return true;
+        } catch (Exception $exc) {
+            $this->setError($exc->getMessage());
+            if ($this->exceptions) {
+                throw $exc;
+            }
+
+            return false;
+        }
+    }
+
+    /**
+     * Actually send a message via the selected mechanism.
+     *
+     * @throws Exception
+     *
+     * @return bool
+     */
+    public function postSend()
+    {
+        try {
+            // Choose the mailer and send through it
+            switch ($this->Mailer) {
+                case 'sendmail':
+                case 'qmail':
+                    return $this->sendmailSend($this->MIMEHeader, $this->MIMEBody);
+                case 'smtp':
+                    return $this->smtpSend($this->MIMEHeader, $this->MIMEBody);
+                case 'mail':
+                    return $this->mailSend($this->MIMEHeader, $this->MIMEBody);
+                default:
+                    $sendMethod = $this->Mailer . 'Send';
+                    if (method_exists($this, $sendMethod)) {
+                        return $this->$sendMethod($this->MIMEHeader, $this->MIMEBody);
+                    }
+
+                    return $this->mailSend($this->MIMEHeader, $this->MIMEBody);
+            }
+        } catch (Exception $exc) {
+            $this->setError($exc->getMessage());
+            $this->edebug($exc->getMessage());
+            if ($this->exceptions) {
+                throw $exc;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * Send mail using the $Sendmail program.
+     *
+     * @see    PHPMailer::$Sendmail
+     *
+     * @param string $header The message headers
+     * @param string $body   The message body
+     *
+     * @throws Exception
+     *
+     * @return bool
+     */
+    protected function sendmailSend($header, $body)
+    {
+        // CVE-2016-10033, CVE-2016-10045: Don't pass -f if characters will be escaped.
+        if (!empty($this->Sender) and self::isShellSafe($this->Sender)) {
+            if ('qmail' == $this->Mailer) {
+                $sendmailFmt = '%s -f%s';
+            } else {
+                $sendmailFmt = '%s -oi -f%s -t';
+            }
+        } else {
+            if ('qmail' == $this->Mailer) {
+                $sendmailFmt = '%s';
+            } else {
+                $sendmailFmt = '%s -oi -t';
+            }
+        }
+
+        $sendmail = sprintf($sendmailFmt, escapeshellcmd($this->Sendmail), $this->Sender);
+
+        if ($this->SingleTo) {
+            foreach ($this->SingleToArray as $toAddr) {
+                $mail = @popen($sendmail, 'w');
+                if (!$mail) {
+                    throw new Exception($this->lang('execute') . $this->Sendmail, self::STOP_CRITICAL);
+                }
+                fwrite($mail, 'To: ' . $toAddr . "\n");
+                fwrite($mail, $header);
+                fwrite($mail, $body);
+                $result = pclose($mail);
+                $this->doCallback(
+                    ($result == 0),
+                    [$toAddr],
+                    $this->cc,
+                    $this->bcc,
+                    $this->Subject,
+                    $body,
+                    $this->From,
+                    []
+                );
+                if (0 !== $result) {
+                    throw new Exception($this->lang('execute') . $this->Sendmail, self::STOP_CRITICAL);
+                }
+            }
+        } else {
+            $mail = @popen($sendmail, 'w');
+            if (!$mail) {
+                throw new Exception($this->lang('execute') . $this->Sendmail, self::STOP_CRITICAL);
+            }
+            fwrite($mail, $header);
+            fwrite($mail, $body);
+            $result = pclose($mail);
+            $this->doCallback(
+                ($result == 0),
+                $this->to,
+                $this->cc,
+                $this->bcc,
+                $this->Subject,
+                $body,
+                $this->From,
+                []
+            );
+            if (0 !== $result) {
+                throw new Exception($this->lang('execute') . $this->Sendmail, self::STOP_CRITICAL);
+            }
+        }
+
+        return true;
+    }
+
+    /**
+     * Fix CVE-2016-10033 and CVE-2016-10045 by disallowing potentially unsafe shell characters.
+     * Note that escapeshellarg and escapeshellcmd are inadequate for our purposes, especially on Windows.
+     *
+     * @see https://github.com/PHPMailer/PHPMailer/issues/924 CVE-2016-10045 bug report
+     *
+     * @param string $string The string to be validated
+     *
+     * @return bool
+     */
+    protected static function isShellSafe($string)
+    {
+        // Future-proof
+        if (escapeshellcmd($string) !== $string
+            or !in_array(escapeshellarg($string), ["'$string'", "\"$string\""])
+        ) {
+            return false;
+        }
+
+        $length = strlen($string);
+
+        for ($i = 0; $i < $length; ++$i) {
+            $c = $string[$i];
+
+            // All other characters have a special meaning in at least one common shell, including = and +.
+            // Full stop (.) has a special meaning in cmd.exe, but its impact should be negligible here.
+            // Note that this does permit non-Latin alphanumeric characters based on the current locale.
+            if (!ctype_alnum($c) && strpos('@_-.', $c) === false) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+    /**
+     * Send mail using the PHP mail() function.
+     *
+     * @see    http://www.php.net/manual/en/book.mail.php
+     *
+     * @param string $header The message headers
+     * @param string $body   The message body
+     *
+     * @throws Exception
+     *
+     * @return bool
+     */
+    protected function mailSend($header, $body)
+    {
+        $toArr = [];
+        foreach ($this->to as $toaddr) {
+            $toArr[] = $this->addrFormat($toaddr);
+        }
+        $to = implode(', ', $toArr);
+
+        $params = null;
+        //This sets the SMTP envelope sender which gets turned into a return-path header by the receiver
+        if (!empty($this->Sender) and static::validateAddress($this->Sender)) {
+            //A space after `-f` is optional, but there is a long history of its presence
+            //causing problems, so we don't use one
+            //Exim docs: http://www.exim.org/exim-html-current/doc/html/spec_html/ch-the_exim_command_line.html
+            //Sendmail docs: http://www.sendmail.org/~ca/email/man/sendmail.html
+            //Qmail docs: http://www.qmail.org/man/man8/qmail-inject.html
+            //Example problem: https://www.drupal.org/node/1057954
+            // CVE-2016-10033, CVE-2016-10045: Don't pass -f if characters will be escaped.
+            if (self::isShellSafe($this->Sender)) {
+                $params = sprintf('-f%s', $this->Sender);
+            }
+        }
+        if (!empty($this->Sender) and static::validateAddress($this->Sender)) {
+            $old_from = ini_get('sendmail_from');
+            ini_set('sendmail_from', $this->Sender);
+        }
+        $result = false;
+        if ($this->SingleTo and count($toArr) > 1) {
+            foreach ($toArr as $toAddr) {
+                $result = $this->mailPassthru($toAddr, $this->Subject, $body, $header, $params);
+                $this->doCallback($result, [$toAddr], $this->cc, $this->bcc, $this->Subject, $body, $this->From, []);
+            }
+        } else {
+            $result = $this->mailPassthru($to, $this->Subject, $body, $header, $params);
+            $this->doCallback($result, $this->to, $this->cc, $this->bcc, $this->Subject, $body, $this->From, []);
+        }
+        if (isset($old_from)) {
+            ini_set('sendmail_from', $old_from);
+        }
+        if (!$result) {
+            throw new Exception($this->lang('instantiate'), self::STOP_CRITICAL);
+        }
+
+        return true;
+    }
+
+    /**
+     * Get an instance to use for SMTP operations.
+     * Override this function to load your own SMTP implementation,
+     * or set one with setSMTPInstance.
+     *
+     * @return SMTP
+     */
+    public function getSMTPInstance()
+    {
+        if (!is_object($this->smtp)) {
+            $this->smtp = new SMTP();
+        }
+
+        return $this->smtp;
+    }
+
+    /**
+     * Provide an instance to use for SMTP operations.
+     *
+     * @param SMTP $smtp
+     *
+     * @return SMTP
+     */
+    public function setSMTPInstance(SMTP $smtp)
+    {
+        $this->smtp = $smtp;
+
+        return $this->smtp;
+    }
+
+    /**
+     * Send mail via SMTP.
+     * Returns false if there is a bad MAIL FROM, RCPT, or DATA input.
+     *
+     * @see PHPMailer::setSMTPInstance() to use a different class.
+     *
+     * @uses \PHPMailer\PHPMailer\SMTP
+     *
+     * @param string $header The message headers
+     * @param string $body   The message body
+     *
+     * @throws Exception
+     *
+     * @return bool
+     */
+    protected function smtpSend($header, $body)
+    {
+        $bad_rcpt = [];
+        if (!$this->smtpConnect($this->SMTPOptions)) {
+            throw new Exception($this->lang('smtp_connect_failed'), self::STOP_CRITICAL);
+        }
+        //Sender already validated in preSend()
+        if ('' == $this->Sender) {
+            $smtp_from = $this->From;
+        } else {
+            $smtp_from = $this->Sender;
+        }
+        if (!$this->smtp->mail($smtp_from)) {
+            $this->setError($this->lang('from_failed') . $smtp_from . ' : ' . implode(',', $this->smtp->getError()));
+            throw new Exception($this->ErrorInfo, self::STOP_CRITICAL);
+        }
+
+        $callbacks = [];
+        // Attempt to send to all recipients
+        foreach ([$this->to, $this->cc, $this->bcc] as $togroup) {
+            foreach ($togroup as $to) {
+                if (!$this->smtp->recipient($to[0])) {
+                    $error = $this->smtp->getError();
+                    $bad_rcpt[] = ['to' => $to[0], 'error' => $error['detail']];
+                    $isSent = false;
+                } else {
+                    $isSent = true;
+                }
+
+                $callbacks[] = ['issent'=>$isSent, 'to'=>$to[0]];
+            }
+        }
+
+        // Only send the DATA command if we have viable recipients
+        if ((count($this->all_recipients) > count($bad_rcpt)) and !$this->smtp->data($header . $body)) {
+            throw new Exception($this->lang('data_not_accepted'), self::STOP_CRITICAL);
+        }
+
+        $smtp_transaction_id = $this->smtp->getLastTransactionID();
+
+        if ($this->SMTPKeepAlive) {
+            $this->smtp->reset();
+        } else {
+            $this->smtp->quit();
+            $this->smtp->close();
+        }
+
+        foreach ($callbacks as $cb) {
+            $this->doCallback(
+                $cb['issent'],
+                [$cb['to']],
+                [],
+                [],
+                $this->Subject,
+                $body,
+                $this->From,
+                ['smtp_transaction_id' => $smtp_transaction_id]
+            );
+        }
+
+        //Create error message for any bad addresses
+        if (count($bad_rcpt) > 0) {
+            $errstr = '';
+            foreach ($bad_rcpt as $bad) {
+                $errstr .= $bad['to'] . ': ' . $bad['error'];
+            }
+            throw new Exception(
+                $this->lang('recipients_failed') . $errstr,
+                self::STOP_CONTINUE
+            );
+        }
+
+        return true;
+    }
+
+    /**
+     * Initiate a connection to an SMTP server.
+     * Returns false if the operation failed.
+     *
+     * @param array $options An array of options compatible with stream_context_create()
+     *
+     * @throws Exception
+     *
+     * @uses \PHPMailer\PHPMailer\SMTP
+     *
+     * @return bool
+     */
+    public function smtpConnect($options = null)
+    {
+        if (null === $this->smtp) {
+            $this->smtp = $this->getSMTPInstance();
+        }
+
+        //If no options are provided, use whatever is set in the instance
+        if (null === $options) {
+            $options = $this->SMTPOptions;
+        }
+
+        // Already connected?
+        if ($this->smtp->connected()) {
+            return true;
+        }
+
+        $this->smtp->setTimeout($this->Timeout);
+        $this->smtp->setDebugLevel($this->SMTPDebug);
+        $this->smtp->setDebugOutput($this->Debugoutput);
+        $this->smtp->setVerp($this->do_verp);
+        $hosts = explode(';', $this->Host);
+        $lastexception = null;
+
+        foreach ($hosts as $hostentry) {
+            $hostinfo = [];
+            if (!preg_match(
+                '/^((ssl|tls):\/\/)*([a-zA-Z0-9\.-]*|\[[a-fA-F0-9:]+\]):?([0-9]*)$/',
+                trim($hostentry),
+                $hostinfo
+            )) {
+                static::edebug($this->lang('connect_host') . ' ' . $hostentry);
+                // Not a valid host entry
+                continue;
+            }
+            // $hostinfo[2]: optional ssl or tls prefix
+            // $hostinfo[3]: the hostname
+            // $hostinfo[4]: optional port number
+            // The host string prefix can temporarily override the current setting for SMTPSecure
+            // If it's not specified, the default value is used
+
+            //Check the host name is a valid name or IP address before trying to use it
+            if (!static::isValidHost($hostinfo[3])) {
+                static::edebug($this->lang('connect_host') . ' ' . $hostentry);
+                continue;
+            }
+            $prefix = '';
+            $secure = $this->SMTPSecure;
+            $tls = ('tls' == $this->SMTPSecure);
+            if ('ssl' == $hostinfo[2] or ('' == $hostinfo[2] and 'ssl' == $this->SMTPSecure)) {
+                $prefix = 'ssl://';
+                $tls = false; // Can't have SSL and TLS at the same time
+                $secure = 'ssl';
+            } elseif ('tls' == $hostinfo[2]) {
+                $tls = true;
+                // tls doesn't use a prefix
+                $secure = 'tls';
+            }
+            //Do we need the OpenSSL extension?
+            $sslext = defined('OPENSSL_ALGO_SHA256');
+            if ('tls' === $secure or 'ssl' === $secure) {
+                //Check for an OpenSSL constant rather than using extension_loaded, which is sometimes disabled
+                if (!$sslext) {
+                    throw new Exception($this->lang('extension_missing') . 'openssl', self::STOP_CRITICAL);
+                }
+            }
+            $host = $hostinfo[3];
+            $port = $this->Port;
+            $tport = (int) $hostinfo[4];
+            if ($tport > 0 and $tport < 65536) {
+                $port = $tport;
+            }
+            if ($this->smtp->connect($prefix . $host, $port, $this->Timeout, $options)) {
+                try {
+                    if ($this->Helo) {
+                        $hello = $this->Helo;
+                    } else {
+                        $hello = $this->serverHostname();
+                    }
+                    $this->smtp->hello($hello);
+                    //Automatically enable TLS encryption if:
+                    // * it's not disabled
+                    // * we have openssl extension
+                    // * we are not already using SSL
+                    // * the server offers STARTTLS
+                    if ($this->SMTPAutoTLS and $sslext and 'ssl' != $secure and $this->smtp->getServerExt('STARTTLS')) {
+                        $tls = true;
+                    }
+                    if ($tls) {
+                        if (!$this->smtp->startTLS()) {
+                            throw new Exception($this->lang('connect_host'));
+                        }
+                        // We must resend EHLO after TLS negotiation
+                        $this->smtp->hello($hello);
+                    }
+                    if ($this->SMTPAuth) {
+                        if (!$this->smtp->authenticate(
+                            $this->Username,
+                            $this->Password,
+                            $this->AuthType,
+                            $this->oauth
+                        )
+                        ) {
+                            throw new Exception($this->lang('authenticate'));
+                        }
+                    }
+
+                    return true;
+                } catch (Exception $exc) {
+                    $lastexception = $exc;
+                    $this->edebug($exc->getMessage());
+                    // We must have connected, but then failed TLS or Auth, so close connection nicely
+                    $this->smtp->quit();
+                }
+            }
+        }
+        // If we get here, all connection attempts have failed, so close connection hard
+        $this->smtp->close();
+        // As we've caught all exceptions, just report whatever the last one was
+        if ($this->exceptions and null !== $lastexception) {
+            throw $lastexception;
+        }
+
+        return false;
+    }
+
+    /**
+     * Close the active SMTP session if one exists.
+     */
+    public function smtpClose()
+    {
+        if (null !== $this->smtp) {
+            if ($this->smtp->connected()) {
+                $this->smtp->quit();
+                $this->smtp->close();
+            }
+        }
+    }
+
+    /**
+     * Set the language for error messages.
+     * Returns false if it cannot load the language file.
+     * The default language is English.
+     *
+     * @param string $langcode  ISO 639-1 2-character language code (e.g. French is "fr")
+     * @param string $lang_path Path to the language file directory, with trailing separator (slash)
+     *
+     * @return bool
+     */
+    public function setLanguage($langcode = 'en', $lang_path = '')
+    {
+        // Backwards compatibility for renamed language codes
+        $renamed_langcodes = [
+            'br' => 'pt_br',
+            'cz' => 'cs',
+            'dk' => 'da',
+            'no' => 'nb',
+            'se' => 'sv',
+            'sr' => 'rs',
+        ];
+
+        if (isset($renamed_langcodes[$langcode])) {
+            $langcode = $renamed_langcodes[$langcode];
+        }
+
+        // Define full set of translatable strings in English
+        $PHPMAILER_LANG = [
+            'authenticate' => 'SMTP Error: Could not authenticate.',
+            'connect_host' => 'SMTP Error: Could not connect to SMTP host.',
+            'data_not_accepted' => 'SMTP Error: data not accepted.',
+            'empty_message' => 'Message body empty',
+            'encoding' => 'Unknown encoding: ',
+            'execute' => 'Could not execute: ',
+            'file_access' => 'Could not access file: ',
+            'file_open' => 'File Error: Could not open file: ',
+            'from_failed' => 'The following From address failed: ',
+            'instantiate' => 'Could not instantiate mail function.',
+            'invalid_address' => 'Invalid address: ',
+            'mailer_not_supported' => ' mailer is not supported.',
+            'provide_address' => 'You must provide at least one recipient email address.',
+            'recipients_failed' => 'SMTP Error: The following recipients failed: ',
+            'signing' => 'Signing Error: ',
+            'smtp_connect_failed' => 'SMTP connect() failed.',
+            'smtp_error' => 'SMTP server error: ',
+            'variable_set' => 'Cannot set or reset variable: ',
+            'extension_missing' => 'Extension missing: ',
+        ];
+        if (empty($lang_path)) {
+            // Calculate an absolute path so it can work if CWD is not here
+            $lang_path = dirname(__DIR__) . DIRECTORY_SEPARATOR . 'language' . DIRECTORY_SEPARATOR;
+        }
+        //Validate $langcode
+        if (!preg_match('/^[a-z]{2}(?:_[a-zA-Z]{2})?$/', $langcode)) {
+            $langcode = 'en';
+        }
+        $foundlang = true;
+        $lang_file = $lang_path . 'phpmailer.lang-' . $langcode . '.php';
+        // There is no English translation file
+        if ('en' != $langcode) {
+            // Make sure language file path is readable
+            if (!file_exists($lang_file)) {
+                $foundlang = false;
+            } else {
+                // Overwrite language-specific strings.
+                // This way we'll never have missing translation keys.
+                $foundlang = include $lang_file;
+            }
+        }
+        $this->language = $PHPMAILER_LANG;
+
+        return (bool) $foundlang; // Returns false if language not found
+    }
+
+    /**
+     * Get the array of strings for the current language.
+     *
+     * @return array
+     */
+    public function getTranslations()
+    {
+        return $this->language;
+    }
+
+    /**
+     * Create recipient headers.
+     *
+     * @param string $type
+     * @param array  $addr An array of recipients,
+     *                     where each recipient is a 2-element indexed array with element 0 containing an address
+     *                     and element 1 containing a name, like:
+     *                     [['joe@example.com', 'Joe User'], ['zoe@example.com', 'Zoe User']]
+     *
+     * @return string
+     */
+    public function addrAppend($type, $addr)
+    {
+        $addresses = [];
+        foreach ($addr as $address) {
+            $addresses[] = $this->addrFormat($address);
+        }
+
+        return $type . ': ' . implode(', ', $addresses) . static::$LE;
+    }
+
+    /**
+     * Format an address for use in a message header.
+     *
+     * @param array $addr A 2-element indexed array, element 0 containing an address, element 1 containing a name like
+     *                    ['joe@example.com', 'Joe User']
+     *
+     * @return string
+     */
+    public function addrFormat($addr)
+    {
+        if (empty($addr[1])) { // No name provided
+            return $this->secureHeader($addr[0]);
+        }
+
+        return $this->encodeHeader($this->secureHeader($addr[1]), 'phrase') . ' <' . $this->secureHeader(
+                $addr[0]
+            ) . '>';
+    }
+
+    /**
+     * Word-wrap message.
+     * For use with mailers that do not automatically perform wrapping
+     * and for quoted-printable encoded messages.
+     * Original written by philippe.
+     *
+     * @param string $message The message to wrap
+     * @param int    $length  The line length to wrap to
+     * @param bool   $qp_mode Whether to run in Quoted-Printable mode
+     *
+     * @return string
+     */
+    public function wrapText($message, $length, $qp_mode = false)
+    {
+        if ($qp_mode) {
+            $soft_break = sprintf(' =%s', static::$LE);
+        } else {
+            $soft_break = static::$LE;
+        }
+        // If utf-8 encoding is used, we will need to make sure we don't
+        // split multibyte characters when we wrap
+        $is_utf8 = 'utf-8' == strtolower($this->CharSet);
+        $lelen = strlen(static::$LE);
+        $crlflen = strlen(static::$LE);
+
+        $message = static::normalizeBreaks($message);
+        //Remove a trailing line break
+        if (substr($message, -$lelen) == static::$LE) {
+            $message = substr($message, 0, -$lelen);
+        }
+
+        //Split message into lines
+        $lines = explode(static::$LE, $message);
+        //Message will be rebuilt in here
+        $message = '';
+        foreach ($lines as $line) {
+            $words = explode(' ', $line);
+            $buf = '';
+            $firstword = true;
+            foreach ($words as $word) {
+                if ($qp_mode and (strlen($word) > $length)) {
+                    $space_left = $length - strlen($buf) - $crlflen;
+                    if (!$firstword) {
+                        if ($space_left > 20) {
+                            $len = $space_left;
+                            if ($is_utf8) {
+                                $len = $this->utf8CharBoundary($word, $len);
+                            } elseif ('=' == substr($word, $len - 1, 1)) {
+                                --$len;
+                            } elseif ('=' == substr($word, $len - 2, 1)) {
+                                $len -= 2;
+                            }
+                            $part = substr($word, 0, $len);
+                            $word = substr($word, $len);
+                            $buf .= ' ' . $part;
+                            $message .= $buf . sprintf('=%s', static::$LE);
+                        } else {
+                            $message .= $buf . $soft_break;
+                        }
+                        $buf = '';
+                    }
+                    while (strlen($word) > 0) {
+                        if ($length <= 0) {
+                            break;
+                        }
+                        $len = $length;
+                        if ($is_utf8) {
+                            $len = $this->utf8CharBoundary($word, $len);
+                        } elseif ('=' == substr($word, $len - 1, 1)) {
+                            --$len;
+                        } elseif ('=' == substr($word, $len - 2, 1)) {
+                            $len -= 2;
+                        }
+                        $part = substr($word, 0, $len);
+                        $word = substr($word, $len);
+
+                        if (strlen($word) > 0) {
+                            $message .= $part . sprintf('=%s', static::$LE);
+                        } else {
+                            $buf = $part;
+                        }
+                    }
+                } else {
+                    $buf_o = $buf;
+                    if (!$firstword) {
+                        $buf .= ' ';
+                    }
+                    $buf .= $word;
+
+                    if (strlen($buf) > $length and '' != $buf_o) {
+                        $message .= $buf_o . $soft_break;
+                        $buf = $word;
+                    }
+                }
+                $firstword = false;
+            }
+            $message .= $buf . static::$LE;
+        }
+
+        return $message;
+    }
+
+    /**
+     * Find the last character boundary prior to $maxLength in a utf-8
+     * quoted-printable encoded string.
+     * Original written by Colin Brown.
+     *
+     * @param string $encodedText utf-8 QP text
+     * @param int    $maxLength   Find the last character boundary prior to this length
+     *
+     * @return int
+     */
+    public function utf8CharBoundary($encodedText, $maxLength)
+    {
+        $foundSplitPos = false;
+        $lookBack = 3;
+        while (!$foundSplitPos) {
+            $lastChunk = substr($encodedText, $maxLength - $lookBack, $lookBack);
+            $encodedCharPos = strpos($lastChunk, '=');
+            if (false !== $encodedCharPos) {
+                // Found start of encoded character byte within $lookBack block.
+                // Check the encoded byte value (the 2 chars after the '=')
+                $hex = substr($encodedText, $maxLength - $lookBack + $encodedCharPos + 1, 2);
+                $dec = hexdec($hex);
+                if ($dec < 128) {
+                    // Single byte character.
+                    // If the encoded char was found at pos 0, it will fit
+                    // otherwise reduce maxLength to start of the encoded char
+                    if ($encodedCharPos > 0) {
+                        $maxLength -= $lookBack - $encodedCharPos;
+                    }
+                    $foundSplitPos = true;
+                } elseif ($dec >= 192) {
+                    // First byte of a multi byte character
+                    // Reduce maxLength to split at start of character
+                    $maxLength -= $lookBack - $encodedCharPos;
+                    $foundSplitPos = true;
+                } elseif ($dec < 192) {
+                    // Middle byte of a multi byte character, look further back
+                    $lookBack += 3;
+                }
+            } else {
+                // No encoded character found
+                $foundSplitPos = true;
+            }
+        }
+
+        return $maxLength;
+    }
+
+    /**
+     * Apply word wrapping to the message body.
+     * Wraps the message body to the number of chars set in the WordWrap property.
+     * You should only do this to plain-text bodies as wrapping HTML tags may break them.
+     * This is called automatically by createBody(), so you don't need to call it yourself.
+     */
+    public function setWordWrap()
+    {
+        if ($this->WordWrap < 1) {
+            return;
+        }
+
+        switch ($this->message_type) {
+            case 'alt':
+            case 'alt_inline':
+            case 'alt_attach':
+            case 'alt_inline_attach':
+                $this->AltBody = $this->wrapText($this->AltBody, $this->WordWrap);
+                break;
+            default:
+                $this->Body = $this->wrapText($this->Body, $this->WordWrap);
+                break;
+        }
+    }
+
+    /**
+     * Assemble message headers.
+     *
+     * @return string The assembled headers
+     */
+    public function createHeader()
+    {
+        $result = '';
+
+        $result .= $this->headerLine('Date', '' == $this->MessageDate ? self::rfcDate() : $this->MessageDate);
+
+        // To be created automatically by mail()
+        if ($this->SingleTo) {
+            if ('mail' != $this->Mailer) {
+                foreach ($this->to as $toaddr) {
+                    $this->SingleToArray[] = $this->addrFormat($toaddr);
+                }
+            }
+        } else {
+            if (count($this->to) > 0) {
+                if ('mail' != $this->Mailer) {
+                    $result .= $this->addrAppend('To', $this->to);
+                }
+            } elseif (count($this->cc) == 0) {
+                $result .= $this->headerLine('To', 'undisclosed-recipients:;');
+            }
+        }
+
+        $result .= $this->addrAppend('From', [[trim($this->From), $this->FromName]]);
+
+        // sendmail and mail() extract Cc from the header before sending
+        if (count($this->cc) > 0) {
+            $result .= $this->addrAppend('Cc', $this->cc);
+        }
+
+        // sendmail and mail() extract Bcc from the header before sending
+        if ((
+                'sendmail' == $this->Mailer or 'qmail' == $this->Mailer or 'mail' == $this->Mailer
+            )
+            and count($this->bcc) > 0
+        ) {
+            $result .= $this->addrAppend('Bcc', $this->bcc);
+        }
+
+        if (count($this->ReplyTo) > 0) {
+            $result .= $this->addrAppend('Reply-To', $this->ReplyTo);
+        }
+
+        // mail() sets the subject itself
+        if ('mail' != $this->Mailer) {
+            $result .= $this->headerLine('Subject', $this->encodeHeader($this->secureHeader($this->Subject)));
+        }
+
+        // Only allow a custom message ID if it conforms to RFC 5322 section 3.6.4
+        // https://tools.ietf.org/html/rfc5322#section-3.6.4
+        if ('' != $this->MessageID and preg_match('/^<.*@.*>$/', $this->MessageID)) {
+            $this->lastMessageID = $this->MessageID;
+        } else {
+            $this->lastMessageID = sprintf('<%s@%s>', $this->uniqueid, $this->serverHostname());
+        }
+        $result .= $this->headerLine('Message-ID', $this->lastMessageID);
+        if (null !== $this->Priority) {
+            $result .= $this->headerLine('X-Priority', $this->Priority);
+        }
+        if ('' == $this->XMailer) {
+            $result .= $this->headerLine(
+                'X-Mailer',
+                'PHPMailer ' . self::VERSION . ' (https://github.com/PHPMailer/PHPMailer)'
+            );
+        } else {
+            $myXmailer = trim($this->XMailer);
+            if ($myXmailer) {
+                $result .= $this->headerLine('X-Mailer', $myXmailer);
+            }
+        }
+
+        if ('' != $this->ConfirmReadingTo) {
+            $result .= $this->headerLine('Disposition-Notification-To', '<' . $this->ConfirmReadingTo . '>');
+        }
+
+        // Add custom headers
+        foreach ($this->CustomHeader as $header) {
+            $result .= $this->headerLine(
+                trim($header[0]),
+                $this->encodeHeader(trim($header[1]))
+            );
+        }
+        if (!$this->sign_key_file) {
+            $result .= $this->headerLine('MIME-Version', '1.0');
+            $result .= $this->getMailMIME();
+        }
+
+        return $result;
+    }
+
+    /**
+     * Get the message MIME type headers.
+     *
+     * @return string
+     */
+    public function getMailMIME()
+    {
+        $result = '';
+        $ismultipart = true;
+        switch ($this->message_type) {
+            case 'inline':
+                $result .= $this->headerLine('Content-Type', static::CONTENT_TYPE_MULTIPART_RELATED . ';');
+                $result .= $this->textLine("\tboundary=\"" . $this->boundary[1] . '"');
+                break;
+            case 'attach':
+            case 'inline_attach':
+            case 'alt_attach':
+            case 'alt_inline_attach':
+                $result .= $this->headerLine('Content-Type', static::CONTENT_TYPE_MULTIPART_MIXED . ';');
+                $result .= $this->textLine("\tboundary=\"" . $this->boundary[1] . '"');
+                break;
+            case 'alt':
+            case 'alt_inline':
+                $result .= $this->headerLine('Content-Type', static::CONTENT_TYPE_MULTIPART_ALTERNATIVE . ';');
+                $result .= $this->textLine("\tboundary=\"" . $this->boundary[1] . '"');
+                break;
+            default:
+                // Catches case 'plain': and case '':
+                $result .= $this->textLine('Content-Type: ' . $this->ContentType . '; charset=' . $this->CharSet);
+                $ismultipart = false;
+                break;
+        }
+        // RFC1341 part 5 says 7bit is assumed if not specified
+        if (static::ENCODING_7BIT != $this->Encoding) {
+            // RFC 2045 section 6.4 says multipart MIME parts may only use 7bit, 8bit or binary CTE
+            if ($ismultipart) {
+                if (static::ENCODING_8BIT == $this->Encoding) {
+                    $result .= $this->headerLine('Content-Transfer-Encoding', static::ENCODING_8BIT);
+                }
+                // The only remaining alternatives are quoted-printable and base64, which are both 7bit compatible
+            } else {
+                $result .= $this->headerLine('Content-Transfer-Encoding', $this->Encoding);
+            }
+        }
+
+        if ('mail' != $this->Mailer) {
+            $result .= static::$LE;
+        }
+
+        return $result;
+    }
+
+    /**
+     * Returns the whole MIME message.
+     * Includes complete headers and body.
+     * Only valid post preSend().
+     *
+     * @see PHPMailer::preSend()
+     *
+     * @return string
+     */
+    public function getSentMIMEMessage()
+    {
+        return rtrim($this->MIMEHeader . $this->mailHeader, "\n\r") . static::$LE . static::$LE . $this->MIMEBody;
+    }
+
+    /**
+     * Create a unique ID to use for boundaries.
+     *
+     * @return string
+     */
+    protected function generateId()
+    {
+        $len = 32; //32 bytes = 256 bits
+        if (function_exists('random_bytes')) {
+            $bytes = random_bytes($len);
+        } elseif (function_exists('openssl_random_pseudo_bytes')) {
+            $bytes = openssl_random_pseudo_bytes($len);
+        } else {
+            //Use a hash to force the length to the same as the other methods
+            $bytes = hash('sha256', uniqid((string) mt_rand(), true), true);
+        }
+
+        //We don't care about messing up base64 format here, just want a random string
+        return str_replace(['=', '+', '/'], '', base64_encode(hash('sha256', $bytes, true)));
+    }
+
+    /**
+     * Assemble the message body.
+     * Returns an empty string on failure.
+     *
+     * @throws Exception
+     *
+     * @return string The assembled message body
+     */
+    public function createBody()
+    {
+        $body = '';
+        //Create unique IDs and preset boundaries
+        $this->uniqueid = $this->generateId();
+        $this->boundary[1] = 'b1_' . $this->uniqueid;
+        $this->boundary[2] = 'b2_' . $this->uniqueid;
+        $this->boundary[3] = 'b3_' . $this->uniqueid;
+
+        if ($this->sign_key_file) {
+            $body .= $this->getMailMIME() . static::$LE;
+        }
+
+        $this->setWordWrap();
+
+        $bodyEncoding = $this->Encoding;
+        $bodyCharSet = $this->CharSet;
+        //Can we do a 7-bit downgrade?
+        if (static::ENCODING_8BIT == $bodyEncoding and !$this->has8bitChars($this->Body)) {
+            $bodyEncoding = static::ENCODING_7BIT;
+            //All ISO 8859, Windows codepage and UTF-8 charsets are ascii compatible up to 7-bit
+            $bodyCharSet = 'us-ascii';
+        }
+        //If lines are too long, and we're not already using an encoding that will shorten them,
+        //change to quoted-printable transfer encoding for the body part only
+        if (static::ENCODING_BASE64 != $this->Encoding and static::hasLineLongerThanMax($this->Body)) {
+            $bodyEncoding = static::ENCODING_QUOTED_PRINTABLE;
+        }
+
+        $altBodyEncoding = $this->Encoding;
+        $altBodyCharSet = $this->CharSet;
+        //Can we do a 7-bit downgrade?
+        if (static::ENCODING_8BIT == $altBodyEncoding and !$this->has8bitChars($this->AltBody)) {
+            $altBodyEncoding = static::ENCODING_7BIT;
+            //All ISO 8859, Windows codepage and UTF-8 charsets are ascii compatible up to 7-bit
+            $altBodyCharSet = 'us-ascii';
+        }
+        //If lines are too long, and we're not already using an encoding that will shorten them,
+        //change to quoted-printable transfer encoding for the alt body part only
+        if (static::ENCODING_BASE64 != $altBodyEncoding and static::hasLineLongerThanMax($this->AltBody)) {
+            $altBodyEncoding = static::ENCODING_QUOTED_PRINTABLE;
+        }
+        //Use this as a preamble in all multipart message types
+        $mimepre = 'This is a multi-part message in MIME format.' . static::$LE;
+        switch ($this->message_type) {
+            case 'inline':
+                $body .= $mimepre;
+                $body .= $this->getBoundary($this->boundary[1], $bodyCharSet, '', $bodyEncoding);
+                $body .= $this->encodeString($this->Body, $bodyEncoding);
+                $body .= static::$LE;
+                $body .= $this->attachAll('inline', $this->boundary[1]);
+                break;
+            case 'attach':
+                $body .= $mimepre;
+                $body .= $this->getBoundary($this->boundary[1], $bodyCharSet, '', $bodyEncoding);
+                $body .= $this->encodeString($this->Body, $bodyEncoding);
+                $body .= static::$LE;
+                $body .= $this->attachAll('attachment', $this->boundary[1]);
+                break;
+            case 'inline_attach':
+                $body .= $mimepre;
+                $body .= $this->textLine('--' . $this->boundary[1]);
+                $body .= $this->headerLine('Content-Type', static::CONTENT_TYPE_MULTIPART_RELATED . ';');
+                $body .= $this->textLine("\tboundary=\"" . $this->boundary[2] . '"');
+                $body .= static::$LE;
+                $body .= $this->getBoundary($this->boundary[2], $bodyCharSet, '', $bodyEncoding);
+                $body .= $this->encodeString($this->Body, $bodyEncoding);
+                $body .= static::$LE;
+                $body .= $this->attachAll('inline', $this->boundary[2]);
+                $body .= static::$LE;
+                $body .= $this->attachAll('attachment', $this->boundary[1]);
+                break;
+            case 'alt':
+                $body .= $mimepre;
+                $body .= $this->getBoundary($this->boundary[1], $altBodyCharSet, static::CONTENT_TYPE_PLAINTEXT, $altBodyEncoding);
+                $body .= $this->encodeString($this->AltBody, $altBodyEncoding);
+                $body .= static::$LE;
+                $body .= $this->getBoundary($this->boundary[1], $bodyCharSet, static::CONTENT_TYPE_TEXT_HTML, $bodyEncoding);
+                $body .= $this->encodeString($this->Body, $bodyEncoding);
+                $body .= static::$LE;
+                if (!empty($this->Ical)) {
+                    $body .= $this->getBoundary($this->boundary[1], '', static::CONTENT_TYPE_TEXT_CALENDAR . '; method=REQUEST', '');
+                    $body .= $this->encodeString($this->Ical, $this->Encoding);
+                    $body .= static::$LE;
+                }
+                $body .= $this->endBoundary($this->boundary[1]);
+                break;
+            case 'alt_inline':
+                $body .= $mimepre;
+                $body .= $this->getBoundary($this->boundary[1], $altBodyCharSet, static::CONTENT_TYPE_PLAINTEXT, $altBodyEncoding);
+                $body .= $this->encodeString($this->AltBody, $altBodyEncoding);
+                $body .= static::$LE;
+                $body .= $this->textLine('--' . $this->boundary[1]);
+                $body .= $this->headerLine('Content-Type', static::CONTENT_TYPE_MULTIPART_RELATED . ';');
+                $body .= $this->textLine("\tboundary=\"" . $this->boundary[2] . '"');
+                $body .= static::$LE;
+                $body .= $this->getBoundary($this->boundary[2], $bodyCharSet, static::CONTENT_TYPE_TEXT_HTML, $bodyEncoding);
+                $body .= $this->encodeString($this->Body, $bodyEncoding);
+                $body .= static::$LE;
+                $body .= $this->attachAll('inline', $this->boundary[2]);
+                $body .= static::$LE;
+                $body .= $this->endBoundary($this->boundary[1]);
+                break;
+            case 'alt_attach':
+                $body .= $mimepre;
+                $body .= $this->textLine('--' . $this->boundary[1]);
+                $body .= $this->headerLine('Content-Type', static::CONTENT_TYPE_MULTIPART_ALTERNATIVE . ';');
+                $body .= $this->textLine("\tboundary=\"" . $this->boundary[2] . '"');
+                $body .= static::$LE;
+                $body .= $this->getBoundary($this->boundary[2], $altBodyCharSet, static::CONTENT_TYPE_PLAINTEXT, $altBodyEncoding);
+                $body .= $this->encodeString($this->AltBody, $altBodyEncoding);
+                $body .= static::$LE;
+                $body .= $this->getBoundary($this->boundary[2], $bodyCharSet, static::CONTENT_TYPE_TEXT_HTML, $bodyEncoding);
+                $body .= $this->encodeString($this->Body, $bodyEncoding);
+                $body .= static::$LE;
+                if (!empty($this->Ical)) {
+                    $body .= $this->getBoundary($this->boundary[2], '', static::CONTENT_TYPE_TEXT_CALENDAR . '; method=REQUEST', '');
+                    $body .= $this->encodeString($this->Ical, $this->Encoding);
+                }
+                $body .= $this->endBoundary($this->boundary[2]);
+                $body .= static::$LE;
+                $body .= $this->attachAll('attachment', $this->boundary[1]);
+                break;
+            case 'alt_inline_attach':
+                $body .= $mimepre;
+                $body .= $this->textLine('--' . $this->boundary[1]);
+                $body .= $this->headerLine('Content-Type', static::CONTENT_TYPE_MULTIPART_ALTERNATIVE . ';');
+                $body .= $this->textLine("\tboundary=\"" . $this->boundary[2] . '"');
+                $body .= static::$LE;
+                $body .= $this->getBoundary($this->boundary[2], $altBodyCharSet, static::CONTENT_TYPE_PLAINTEXT, $altBodyEncoding);
+                $body .= $this->encodeString($this->AltBody, $altBodyEncoding);
+                $body .= static::$LE;
+                $body .= $this->textLine('--' . $this->boundary[2]);
+                $body .= $this->headerLine('Content-Type', static::CONTENT_TYPE_MULTIPART_RELATED . ';');
+                $body .= $this->textLine("\tboundary=\"" . $this->boundary[3] . '"');
+                $body .= static::$LE;
+                $body .= $this->getBoundary($this->boundary[3], $bodyCharSet, static::CONTENT_TYPE_TEXT_HTML, $bodyEncoding);
+                $body .= $this->encodeString($this->Body, $bodyEncoding);
+                $body .= static::$LE;
+                $body .= $this->attachAll('inline', $this->boundary[3]);
+                $body .= static::$LE;
+                $body .= $this->endBoundary($this->boundary[2]);
+                $body .= static::$LE;
+                $body .= $this->attachAll('attachment', $this->boundary[1]);
+                break;
+            default:
+                // Catch case 'plain' and case '', applies to simple `text/plain` and `text/html` body content types
+                //Reset the `Encoding` property in case we changed it for line length reasons
+                $this->Encoding = $bodyEncoding;
+                $body .= $this->encodeString($this->Body, $this->Encoding);
+                break;
+        }
+
+        if ($this->isError()) {
+            $body = '';
+            if ($this->exceptions) {
+                throw new Exception($this->lang('empty_message'), self::STOP_CRITICAL);
+            }
+        } elseif ($this->sign_key_file) {
+            try {
+                if (!defined('PKCS7_TEXT')) {
+                    throw new Exception($this->lang('extension_missing') . 'openssl');
+                }
+                // @TODO would be nice to use php://temp streams here
+                $file = tempnam(sys_get_temp_dir(), 'mail');
+                if (false === file_put_contents($file, $body)) {
+                    throw new Exception($this->lang('signing') . ' Could not write temp file');
+                }
+                $signed = tempnam(sys_get_temp_dir(), 'signed');
+                //Workaround for PHP bug https://bugs.php.net/bug.php?id=69197
+                if (empty($this->sign_extracerts_file)) {
+                    $sign = @openssl_pkcs7_sign(
+                        $file,
+                        $signed,
+                        'file://' . realpath($this->sign_cert_file),
+                        ['file://' . realpath($this->sign_key_file), $this->sign_key_pass],
+                        []
+                    );
+                } else {
+                    $sign = @openssl_pkcs7_sign(
+                        $file,
+                        $signed,
+                        'file://' . realpath($this->sign_cert_file),
+                        ['file://' . realpath($this->sign_key_file), $this->sign_key_pass],
+                        [],
+                        PKCS7_DETACHED,
+                        $this->sign_extracerts_file
+                    );
+                }
+                @unlink($file);
+                if ($sign) {
+                    $body = file_get_contents($signed);
+                    @unlink($signed);
+                    //The message returned by openssl contains both headers and body, so need to split them up
+                    $parts = explode("\n\n", $body, 2);
+                    $this->MIMEHeader .= $parts[0] . static::$LE . static::$LE;
+                    $body = $parts[1];
+                } else {
+                    @unlink($signed);
+                    throw new Exception($this->lang('signing') . openssl_error_string());
+                }
+            } catch (Exception $exc) {
+                $body = '';
+                if ($this->exceptions) {
+                    throw $exc;
+                }
+            }
+        }
+
+        return $body;
+    }
+
+    /**
+     * Return the start of a message boundary.
+     *
+     * @param string $boundary
+     * @param string $charSet
+     * @param string $contentType
+     * @param string $encoding
+     *
+     * @return string
+     */
+    protected function getBoundary($boundary, $charSet, $contentType, $encoding)
+    {
+        $result = '';
+        if ('' == $charSet) {
+            $charSet = $this->CharSet;
+        }
+        if ('' == $contentType) {
+            $contentType = $this->ContentType;
+        }
+        if ('' == $encoding) {
+            $encoding = $this->Encoding;
+        }
+        $result .= $this->textLine('--' . $boundary);
+        $result .= sprintf('Content-Type: %s; charset=%s', $contentType, $charSet);
+        $result .= static::$LE;
+        // RFC1341 part 5 says 7bit is assumed if not specified
+        if (static::ENCODING_7BIT != $encoding) {
+            $result .= $this->headerLine('Content-Transfer-Encoding', $encoding);
+        }
+        $result .= static::$LE;
+
+        return $result;
+    }
+
+    /**
+     * Return the end of a message boundary.
+     *
+     * @param string $boundary
+     *
+     * @return string
+     */
+    protected function endBoundary($boundary)
+    {
+        return static::$LE . '--' . $boundary . '--' . static::$LE;
+    }
+
+    /**
+     * Set the message type.
+     * PHPMailer only supports some preset message types, not arbitrary MIME structures.
+     */
+    protected function setMessageType()
+    {
+        $type = [];
+        if ($this->alternativeExists()) {
+            $type[] = 'alt';
+        }
+        if ($this->inlineImageExists()) {
+            $type[] = 'inline';
+        }
+        if ($this->attachmentExists()) {
+            $type[] = 'attach';
+        }
+        $this->message_type = implode('_', $type);
+        if ('' == $this->message_type) {
+            //The 'plain' message_type refers to the message having a single body element, not that it is plain-text
+            $this->message_type = 'plain';
+        }
+    }
+
+    /**
+     * Format a header line.
+     *
+     * @param string     $name
+     * @param string|int $value
+     *
+     * @return string
+     */
+    public function headerLine($name, $value)
+    {
+        return $name . ': ' . $value . static::$LE;
+    }
+
+    /**
+     * Return a formatted mail line.
+     *
+     * @param string $value
+     *
+     * @return string
+     */
+    public function textLine($value)
+    {
+        return $value . static::$LE;
+    }
+
+    /**
+     * Add an attachment from a path on the filesystem.
+     * Never use a user-supplied path to a file!
+     * Returns false if the file could not be found or read.
+     *
+     * @param string $path        Path to the attachment
+     * @param string $name        Overrides the attachment name
+     * @param string $encoding    File encoding (see $Encoding)
+     * @param string $type        File extension (MIME) type
+     * @param string $disposition Disposition to use
+     *
+     * @throws Exception
+     *
+     * @return bool
+     */
+    public function addAttachment($path, $name = '', $encoding = self::ENCODING_BASE64, $type = '', $disposition = 'attachment')
+    {
+        try {
+            if (!@is_file($path)) {
+                throw new Exception($this->lang('file_access') . $path, self::STOP_CONTINUE);
+            }
+
+            // If a MIME type is not specified, try to work it out from the file name
+            if ('' == $type) {
+                $type = static::filenameToType($path);
+            }
+
+            $filename = basename($path);
+            if ('' == $name) {
+                $name = $filename;
+            }
+
+            $this->attachment[] = [
+                0 => $path,
+                1 => $filename,
+                2 => $name,
+                3 => $encoding,
+                4 => $type,
+                5 => false, // isStringAttachment
+                6 => $disposition,
+                7 => $name,
+            ];
+        } catch (Exception $exc) {
+            $this->setError($exc->getMessage());
+            $this->edebug($exc->getMessage());
+            if ($this->exceptions) {
+                throw $exc;
+            }
+
+            return false;
+        }
+
+        return true;
+    }
+
+    /**
+     * Return the array of attachments.
+     *
+     * @return array
+     */
+    public function getAttachments()
+    {
+        return $this->attachment;
+    }
+
+    /**
+     * Attach all file, string, and binary attachments to the message.
+     * Returns an empty string on failure.
+     *
+     * @param string $disposition_type
+     * @param string $boundary
+     *
+     * @return string
+     */
+    protected function attachAll($disposition_type, $boundary)
+    {
+        // Return text of body
+        $mime = [];
+        $cidUniq = [];
+        $incl = [];
+
+        // Add all attachments
+        foreach ($this->attachment as $attachment) {
+            // Check if it is a valid disposition_filter
+            if ($attachment[6] == $disposition_type) {
+                // Check for string attachment
+                $string = '';
+                $path = '';
+                $bString = $attachment[5];
+                if ($bString) {
+                    $string = $attachment[0];
+                } else {
+                    $path = $attachment[0];
+                }
+
+                $inclhash = hash('sha256', serialize($attachment));
+                if (in_array($inclhash, $incl)) {
+                    continue;
+                }
+                $incl[] = $inclhash;
+                $name = $attachment[2];
+                $encoding = $attachment[3];
+                $type = $attachment[4];
+                $disposition = $attachment[6];
+                $cid = $attachment[7];
+                if ('inline' == $disposition and array_key_exists($cid, $cidUniq)) {
+                    continue;
+                }
+                $cidUniq[$cid] = true;
+
+                $mime[] = sprintf('--%s%s', $boundary, static::$LE);
+                //Only include a filename property if we have one
+                if (!empty($name)) {
+                    $mime[] = sprintf(
+                        'Content-Type: %s; name="%s"%s',
+                        $type,
+                        $this->encodeHeader($this->secureHeader($name)),
+                        static::$LE
+                    );
+                } else {
+                    $mime[] = sprintf(
+                        'Content-Type: %s%s',
+                        $type,
+                        static::$LE
+                    );
+                }
+                // RFC1341 part 5 says 7bit is assumed if not specified
+                if (static::ENCODING_7BIT != $encoding) {
+                    $mime[] = sprintf('Content-Transfer-Encoding: %s%s', $encoding, static::$LE);
+                }
+
+                if (!empty($cid)) {
+                    $mime[] = sprintf('Content-ID: <%s>%s', $cid, static::$LE);
+                }
+
+                // If a filename contains any of these chars, it should be quoted,
+                // but not otherwise: RFC2183 & RFC2045 5.1
+                // Fixes a warning in IETF's msglint MIME checker
+                // Allow for bypassing the Content-Disposition header totally
+                if (!(empty($disposition))) {
+                    $encoded_name = $this->encodeHeader($this->secureHeader($name));
+                    if (preg_match('/[ \(\)<>@,;:\\"\/\[\]\?=]/', $encoded_name)) {
+                        $mime[] = sprintf(
+                            'Content-Disposition: %s; filename="%s"%s',
+                            $disposition,
+                            $encoded_name,
+                            static::$LE . static::$LE
+                        );
+                    } else {
+                        if (!empty($encoded_name)) {
+                            $mime[] = sprintf(
+                                'Content-Disposition: %s; filename=%s%s',
+                                $disposition,
+                                $encoded_name,
+                                static::$LE . static::$LE
+                            );
+                        } else {
+                            $mime[] = sprintf(
+                                'Content-Disposition: %s%s',
+                                $disposition,
+                                static::$LE . static::$LE
+                            );
+                        }
+                    }
+                } else {
+                    $mime[] = static::$LE;
+                }
+
+                // Encode as string attachment
+                if ($bString) {
+                    $mime[] = $this->encodeString($string, $encoding);
+                } else {
+                    $mime[] = $this->encodeFile($path, $encoding);
+                }
+                if ($this->isError()) {
+                    return '';
+                }
+                $mime[] = static::$LE;
+            }
+        }
+
+        $mime[] = sprintf('--%s--%s', $boundary, static::$LE);
+
+        return implode('', $mime);
+    }
+
+    /**
+     * Encode a file attachment in requested format.
+     * Returns an empty string on failure.
+     *
+     * @param string $path     The full path to the file
+     * @param string $encoding The encoding to use; one of 'base64', '7bit', '8bit', 'binary', 'quoted-printable'
+     *
+     * @throws Exception
+     *
+     * @return string
+     */
+    protected function encodeFile($path, $encoding = self::ENCODING_BASE64)
+    {
+        try {
+            if (!file_exists($path)) {
+                throw new Exception($this->lang('file_open') . $path, self::STOP_CONTINUE);
+            }
+            $file_buffer = file_get_contents($path);
+            if (false === $file_buffer) {
+                throw new Exception($this->lang('file_open') . $path, self::STOP_CONTINUE);
+            }
+            $file_buffer = $this->encodeString($file_buffer, $encoding);
+
+            return $file_buffer;
+        } catch (Exception $exc) {
+            $this->setError($exc->getMessage());
+
+            return '';
+        }
+    }
+
+    /**
+     * Encode a string in requested format.
+     * Returns an empty string on failure.
+     *
+     * @param string $str      The text to encode
+     * @param string $encoding The encoding to use; one of 'base64', '7bit', '8bit', 'binary', 'quoted-printable'
+     *
+     * @return string
+     */
+    public function encodeString($str, $encoding = self::ENCODING_BASE64)
+    {
+        $encoded = '';
+        switch (strtolower($encoding)) {
+            case static::ENCODING_BASE64:
+                $encoded = chunk_split(
+                    base64_encode($str),
+                    static::STD_LINE_LENGTH,
+                    static::$LE
+                );
+                break;
+            case static::ENCODING_7BIT:
+            case static::ENCODING_8BIT:
+                $encoded = static::normalizeBreaks($str);
+                // Make sure it ends with a line break
+                if (substr($encoded, -(strlen(static::$LE))) != static::$LE) {
+                    $encoded .= static::$LE;
+                }
+                break;
+            case static::ENCODING_BINARY:
+                $encoded = $str;
+                break;
+            case static::ENCODING_QUOTED_PRINTABLE:
+                $encoded = $this->encodeQP($str);
+                break;
+            default:
+                $this->setError($this->lang('encoding') . $encoding);
+                break;
+        }
+
+        return $encoded;
+    }
+
+    /**
+     * Encode a header value (not including its label) optimally.
+     * Picks shortest of Q, B, or none. Result includes folding if needed.
+     * See RFC822 definitions for phrase, comment and text positions.
+     *
+     * @param string $str      The header value to encode
+     * @param string $position What context the string will be used in
+     *
+     * @return string
+     */
+    public function encodeHeader($str, $position = 'text')
+    {
+        $matchcount = 0;
+        switch (strtolower($position)) {
+            case 'phrase':
+                if (!preg_match('/[\200-\377]/', $str)) {
+                    // Can't use addslashes as we don't know the value of magic_quotes_sybase
+                    $encoded = addcslashes($str, "\0..\37\177\\\"");
+                    if (($str == $encoded) and !preg_match('/[^A-Za-z0-9!#$%&\'*+\/=?^_`{|}~ -]/', $str)) {
+                        return $encoded;
+                    }
+
+                    return "\"$encoded\"";
+                }
+                $matchcount = preg_match_all('/[^\040\041\043-\133\135-\176]/', $str, $matches);
+                break;
+            /* @noinspection PhpMissingBreakStatementInspection */
+            case 'comment':
+                $matchcount = preg_match_all('/[()"]/', $str, $matches);
+            //fallthrough
+            case 'text':
+            default:
+                $matchcount += preg_match_all('/[\000-\010\013\014\016-\037\177-\377]/', $str, $matches);
+                break;
+        }
+
+        //RFCs specify a maximum line length of 78 chars, however mail() will sometimes
+        //corrupt messages with headers longer than 65 chars. See #818
+        $lengthsub = 'mail' == $this->Mailer ? 13 : 0;
+        $maxlen = static::STD_LINE_LENGTH - $lengthsub;
+        // Try to select the encoding which should produce the shortest output
+        if ($matchcount > strlen($str) / 3) {
+            // More than a third of the content will need encoding, so B encoding will be most efficient
+            $encoding = 'B';
+            //This calculation is:
+            // max line length
+            // - shorten to avoid mail() corruption
+            // - Q/B encoding char overhead ("` =?<charset>?[QB]?<content>?=`")
+            // - charset name length
+            $maxlen = static::STD_LINE_LENGTH - $lengthsub - 8 - strlen($this->CharSet);
+            if ($this->hasMultiBytes($str)) {
+                // Use a custom function which correctly encodes and wraps long
+                // multibyte strings without breaking lines within a character
+                $encoded = $this->base64EncodeWrapMB($str, "\n");
+            } else {
+                $encoded = base64_encode($str);
+                $maxlen -= $maxlen % 4;
+                $encoded = trim(chunk_split($encoded, $maxlen, "\n"));
+            }
+            $encoded = preg_replace('/^(.*)$/m', ' =?' . $this->CharSet . "?$encoding?\\1?=", $encoded);
+        } elseif ($matchcount > 0) {
+            //1 or more chars need encoding, use Q-encode
+            $encoding = 'Q';
+            //Recalc max line length for Q encoding - see comments on B encode
+            $maxlen = static::STD_LINE_LENGTH - $lengthsub - 8 - strlen($this->CharSet);
+            $encoded = $this->encodeQ($str, $position);
+            $encoded = $this->wrapText($encoded, $maxlen, true);
+            $encoded = str_replace('=' . static::$LE, "\n", trim($encoded));
+            $encoded = preg_replace('/^(.*)$/m', ' =?' . $this->CharSet . "?$encoding?\\1?=", $encoded);
+        } elseif (strlen($str) > $maxlen) {
+            //No chars need encoding, but line is too long, so fold it
+            $encoded = trim($this->wrapText($str, $maxlen, false));
+            if ($str == $encoded) {
+                //Wrapping nicely didn't work, wrap hard instead
+                $encoded = trim(chunk_split($str, static::STD_LINE_LENGTH, static::$LE));
+            }
+            $encoded = str_replace(static::$LE, "\n", trim($encoded));
+            $encoded = preg_replace('/^(.*)$/m', ' \\1', $encoded);
+        } else {
+            //No reformatting needed
+            return $str;
+        }
+
+        return trim(static::normalizeBreaks($encoded));
+    }
+
+    /**
+     * Check if a string contains multi-byte characters.
+     *
+     * @param string $str multi-byte text to wrap encode
+     *
+     * @return bool
+     */
+    public function hasMultiBytes($str)
+    {
+        if (function_exists('mb_strlen')) {
+            return strlen($str) > mb_strlen($str, $this->CharSet);
+        }
+
+        // Assume no multibytes (we can't handle without mbstring functions anyway)
+        return false;
+    }
+
+    /**
+     * Does a string contain any 8-bit chars (in any charset)?
+     *
+     * @param string $text
+     *
+     * @return bool
+     */
+    public function has8bitChars($text)
+    {
+        return (bool) preg_match('/[\x80-\xFF]/', $text);
+    }
+
+    /**
+     * Encode and wrap long multibyte strings for mail headers
+     * without breaking lines within a character.
+     * Adapted from a function by paravoid.
+     *
+     * @see http://www.php.net/manual/en/function.mb-encode-mimeheader.php#60283
+     *
+     * @param string $str       multi-byte text to wrap encode
+     * @param string $linebreak string to use as linefeed/end-of-line
+     *
+     * @return string
+     */
+    public function base64EncodeWrapMB($str, $linebreak = null)
+    {
+        $start = '=?' . $this->CharSet . '?B?';
+        $end = '?=';
+        $encoded = '';
+        if (null === $linebreak) {
+            $linebreak = static::$LE;
+        }
+
+        $mb_length = mb_strlen($str, $this->CharSet);
+        // Each line must have length <= 75, including $start and $end
+        $length = 75 - strlen($start) - strlen($end);
+        // Average multi-byte ratio
+        $ratio = $mb_length / strlen($str);
+        // Base64 has a 4:3 ratio
+        $avgLength = floor($length * $ratio * .75);
+
+        for ($i = 0; $i < $mb_length; $i += $offset) {
+            $lookBack = 0;
+            do {
+                $offset = $avgLength - $lookBack;
+                $chunk = mb_substr($str, $i, $offset, $this->CharSet);
+                $chunk = base64_encode($chunk);
+                ++$lookBack;
+            } while (strlen($chunk) > $length);
+            $encoded .= $chunk . $linebreak;
+        }
+
+        // Chomp the last linefeed
+        return substr($encoded, 0, -strlen($linebreak));
+    }
+
+    /**
+     * Encode a string in quoted-printable format.
+     * According to RFC2045 section 6.7.
+     *
+     * @param string $string The text to encode
+     *
+     * @return string
+     */
+    public function encodeQP($string)
+    {
+        return static::normalizeBreaks(quoted_printable_encode($string));
+    }
+
+    /**
+     * Encode a string using Q encoding.
+     *
+     * @see http://tools.ietf.org/html/rfc2047#section-4.2
+     *
+     * @param string $str      the text to encode
+     * @param string $position Where the text is going to be used, see the RFC for what that means
+     *
+     * @return string
+     */
+    public function encodeQ($str, $position = 'text')
+    {
+        // There should not be any EOL in the string
+        $pattern = '';
+        $encoded = str_replace(["\r", "\n"], '', $str);
+        switch (strtolower($position)) {
+            case 'phrase':
+                // RFC 2047 section 5.3
+                $pattern = '^A-Za-z0-9!*+\/ -';
+                break;
+            /*
+             * RFC 2047 section 5.2.
+             * Build $pattern without including delimiters and []
+             */
+            /* @noinspection PhpMissingBreakStatementInspection */
+            case 'comment':
+                $pattern = '\(\)"';
+            /* Intentional fall through */
+            case 'text':
+            default:
+                // RFC 2047 section 5.1
+                // Replace every high ascii, control, =, ? and _ characters
+                /** @noinspection SuspiciousAssignmentsInspection */
+                $pattern = '\000-\011\013\014\016-\037\075\077\137\177-\377' . $pattern;
+                break;
+        }
+        $matches = [];
+        if (preg_match_all("/[{$pattern}]/", $encoded, $matches)) {
+            // If the string contains an '=', make sure it's the first thing we replace
+            // so as to avoid double-encoding
+            $eqkey = array_search('=', $matches[0]);
+            if (false !== $eqkey) {
+                unset($matches[0][$eqkey]);
+                array_unshift($matches[0], '=');
+            }
+            foreach (array_unique($matches[0]) as $char) {
+                $encoded = str_replace($char, '=' . sprintf('%02X', ord($char)), $encoded);
+            }
+        }
+        // Replace spaces with _ (more readable than =20)
+        // RFC 2047 section 4.2(2)
+        return str_replace(' ', '_', $encoded);
+    }
+
+    /**
+     * Add a string or binary attachment (non-filesystem).
+     * This method can be used to attach ascii or binary data,
+     * such as a BLOB record from a database.
+     *
+     * @param string $string      String attachment data
+     * @param string $filename    Name of the attachment
+     * @param string $encoding    File encoding (see $Encoding)
+     * @param string $type        File extension (MIME) type
+     * @param string $disposition Disposition to use
+     */
+    public function addStringAttachment(
+        $string,
+        $filename,
+        $encoding = self::ENCODING_BASE64,
+        $type = '',
+        $disposition = 'attachment'
+    ) {
+        // If a MIME type is not specified, try to work it out from the file name
+        if ('' == $type) {
+            $type = static::filenameToType($filename);
+        }
+        // Append to $attachment array
+        $this->attachment[] = [
+            0 => $string,
+            1 => $filename,
+            2 => basename($filename),
+            3 => $encoding,
+            4 => $type,
+            5 => true, // isStringAttachment
+            6 => $disposition,
+            7 => 0,
+        ];
+    }
+
+    /**
+     * Add an embedded (inline) attachment from a file.
+     * This can include images, sounds, and just about any other document type.
+     * These differ from 'regular' attachments in that they are intended to be
+     * displayed inline with the message, not just attached for download.
+     * This is used in HTML messages that embed the images
+     * the HTML refers to using the $cid value.
+     * Never use a user-supplied path to a file!
+     *
+     * @param string $path        Path to the attachment
+     * @param string $cid         Content ID of the attachment; Use this to reference
+     *                            the content when using an embedded image in HTML
+     * @param string $name        Overrides the attachment name
+     * @param string $encoding    File encoding (see $Encoding)
+     * @param string $type        File MIME type
+     * @param string $disposition Disposition to use
+     *
+     * @return bool True on successfully adding an attachment
+     */
+    public function addEmbeddedImage($path, $cid, $name = '', $encoding = self::ENCODING_BASE64, $type = '', $disposition = 'inline')
+    {
+        if (!@is_file($path)) {
+            $this->setError($this->lang('file_access') . $path);
+
+            return false;
+        }
+
+        // If a MIME type is not specified, try to work it out from the file name
+        if ('' == $type) {
+            $type = static::filenameToType($path);
+        }
+
+        $filename = basename($path);
+        if ('' == $name) {
+            $name = $filename;
+        }
+
+        // Append to $attachment array
+        $this->attachment[] = [
+            0 => $path,
+            1 => $filename,
+            2 => $name,
+            3 => $encoding,
+            4 => $type,
+            5 => false, // isStringAttachment
+            6 => $disposition,
+            7 => $cid,
+        ];
+
+        return true;
+    }
+
+    /**
+     * Add an embedded stringified attachment.
+     * This can include images, sounds, and just about any other document type.
+     * If your filename doesn't contain an extension, be sure to set the $type to an appropriate MIME type.
+     *
+     * @param string $string      The attachment binary data
+     * @param string $cid         Content ID of the attachment; Use this to reference
+     *                            the content when using an embedded image in HTML
+     * @param string $name        A filename for the attachment. If this contains an extension,
+     *                            PHPMailer will attempt to set a MIME type for the attachment.
+     *                            For example 'file.jpg' would get an 'image/jpeg' MIME type.
+     * @param string $encoding    File encoding (see $Encoding), defaults to 'base64'
+     * @param string $type        MIME type - will be used in preference to any automatically derived type
+     * @param string $disposition Disposition to use
+     *
+     * @return bool True on successfully adding an attachment
+     */
+    public function addStringEmbeddedImage(
+        $string,
+        $cid,
+        $name = '',
+        $encoding = self::ENCODING_BASE64,
+        $type = '',
+        $disposition = 'inline'
+    ) {
+        // If a MIME type is not specified, try to work it out from the name
+        if ('' == $type and !empty($name)) {
+            $type = static::filenameToType($name);
+        }
+
+        // Append to $attachment array
+        $this->attachment[] = [
+            0 => $string,
+            1 => $name,
+            2 => $name,
+            3 => $encoding,
+            4 => $type,
+            5 => true, // isStringAttachment
+            6 => $disposition,
+            7 => $cid,
+        ];
+
+        return true;
+    }
+
+    /**
+     * Check if an embedded attachment is present with this cid.
+     *
+     * @param string $cid
+     *
+     * @return bool
+     */
+    protected function cidExists($cid)
+    {
+        foreach ($this->attachment as $attachment) {
+            if ('inline' == $attachment[6] and $cid == $attachment[7]) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * Check if an inline attachment is present.
+     *
+     * @return bool
+     */
+    public function inlineImageExists()
+    {
+        foreach ($this->attachment as $attachment) {
+            if ('inline' == $attachment[6]) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * Check if an attachment (non-inline) is present.
+     *
+     * @return bool
+     */
+    public function attachmentExists()
+    {
+        foreach ($this->attachment as $attachment) {
+            if ('attachment' == $attachment[6]) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * Check if this message has an alternative body set.
+     *
+     * @return bool
+     */
+    public function alternativeExists()
+    {
+        return !empty($this->AltBody);
+    }
+
+    /**
+     * Clear queued addresses of given kind.
+     *
+     * @param string $kind 'to', 'cc', or 'bcc'
+     */
+    public function clearQueuedAddresses($kind)
+    {
+        $this->RecipientsQueue = array_filter(
+            $this->RecipientsQueue,
+            function ($params) use ($kind) {
+                return $params[0] != $kind;
+            }
+        );
+    }
+
+    /**
+     * Clear all To recipients.
+     */
+    public function clearAddresses()
+    {
+        foreach ($this->to as $to) {
+            unset($this->all_recipients[strtolower($to[0])]);
+        }
+        $this->to = [];
+        $this->clearQueuedAddresses('to');
+    }
+
+    /**
+     * Clear all CC recipients.
+     */
+    public function clearCCs()
+    {
+        foreach ($this->cc as $cc) {
+            unset($this->all_recipients[strtolower($cc[0])]);
+        }
+        $this->cc = [];
+        $this->clearQueuedAddresses('cc');
+    }
+
+    /**
+     * Clear all BCC recipients.
+     */
+    public function clearBCCs()
+    {
+        foreach ($this->bcc as $bcc) {
+            unset($this->all_recipients[strtolower($bcc[0])]);
+        }
+        $this->bcc = [];
+        $this->clearQueuedAddresses('bcc');
+    }
+
+    /**
+     * Clear all ReplyTo recipients.
+     */
+    public function clearReplyTos()
+    {
+        $this->ReplyTo = [];
+        $this->ReplyToQueue = [];
+    }
+
+    /**
+     * Clear all recipient types.
+     */
+    public function clearAllRecipients()
+    {
+        $this->to = [];
+        $this->cc = [];
+        $this->bcc = [];
+        $this->all_recipients = [];
+        $this->RecipientsQueue = [];
+    }
+
+    /**
+     * Clear all filesystem, string, and binary attachments.
+     */
+    public function clearAttachments()
+    {
+        $this->attachment = [];
+    }
+
+    /**
+     * Clear all custom headers.
+     */
+    public function clearCustomHeaders()
+    {
+        $this->CustomHeader = [];
+    }
+
+    /**
+     * Add an error message to the error container.
+     *
+     * @param string $msg
+     */
+    protected function setError($msg)
+    {
+        ++$this->error_count;
+        if ('smtp' == $this->Mailer and null !== $this->smtp) {
+            $lasterror = $this->smtp->getError();
+            if (!empty($lasterror['error'])) {
+                $msg .= $this->lang('smtp_error') . $lasterror['error'];
+                if (!empty($lasterror['detail'])) {
+                    $msg .= ' Detail: ' . $lasterror['detail'];
+                }
+                if (!empty($lasterror['smtp_code'])) {
+                    $msg .= ' SMTP code: ' . $lasterror['smtp_code'];
+                }
+                if (!empty($lasterror['smtp_code_ex'])) {
+                    $msg .= ' Additional SMTP info: ' . $lasterror['smtp_code_ex'];
+                }
+            }
+        }
+        $this->ErrorInfo = $msg;
+    }
+
+    /**
+     * Return an RFC 822 formatted date.
+     *
+     * @return string
+     */
+    public static function rfcDate()
+    {
+        // Set the time zone to whatever the default is to avoid 500 errors
+        // Will default to UTC if it's not set properly in php.ini
+        date_default_timezone_set(@date_default_timezone_get());
+
+        return date('D, j M Y H:i:s O');
+    }
+
+    /**
+     * Get the server hostname.
+     * Returns 'localhost.localdomain' if unknown.
+     *
+     * @return string
+     */
+    protected function serverHostname()
+    {
+        $result = '';
+        if (!empty($this->Hostname)) {
+            $result = $this->Hostname;
+        } elseif (isset($_SERVER) and array_key_exists('SERVER_NAME', $_SERVER)) {
+            $result = $_SERVER['SERVER_NAME'];
+        } elseif (function_exists('gethostname') and gethostname() !== false) {
+            $result = gethostname();
+        } elseif (php_uname('n') !== false) {
+            $result = php_uname('n');
+        }
+        if (!static::isValidHost($result)) {
+            return 'localhost.localdomain';
+        }
+
+        return $result;
+    }
+
+    /**
+     * Validate whether a string contains a valid value to use as a hostname or IP address.
+     * IPv6 addresses must include [], e.g. `[::1]`, not just `::1`.
+     *
+     * @param string $host The host name or IP address to check
+     *
+     * @return bool
+     */
+    public static function isValidHost($host)
+    {
+        //Simple syntax limits
+        if (empty($host)
+            or !is_string($host)
+            or strlen($host) > 256
+        ) {
+            return false;
+        }
+        //Looks like a bracketed IPv6 address
+        if (trim($host, '[]') != $host) {
+            return (bool) filter_var(trim($host, '[]'), FILTER_VALIDATE_IP, FILTER_FLAG_IPV6);
+        }
+        //If removing all the dots results in a numeric string, it must be an IPv4 address.
+        //Need to check this first because otherwise things like `999.0.0.0` are considered valid host names
+        if (is_numeric(str_replace('.', '', $host))) {
+            //Is it a valid IPv4 address?
+            return (bool) filter_var($host, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4);
+        }
+        if (filter_var('http://' . $host, FILTER_VALIDATE_URL, FILTER_FLAG_HOST_REQUIRED)) {
+            //Is it a syntactically valid hostname?
+            return true;
+        }
+
+        return false;
+    }
+
+    /**
+     * Get an error message in the current language.
+     *
+     * @param string $key
+     *
+     * @return string
+     */
+    protected function lang($key)
+    {
+        if (count($this->language) < 1) {
+            $this->setLanguage('en'); // set the default language
+        }
+
+        if (array_key_exists($key, $this->language)) {
+            if ('smtp_connect_failed' == $key) {
+                //Include a link to troubleshooting docs on SMTP connection failure
+                //this is by far the biggest cause of support questions
+                //but it's usually not PHPMailer's fault.
+                return $this->language[$key] . ' https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting';
+            }
+
+            return $this->language[$key];
+        }
+
+        //Return the key as a fallback
+        return $key;
+    }
+
+    /**
+     * Check if an error occurred.
+     *
+     * @return bool True if an error did occur
+     */
+    public function isError()
+    {
+        return $this->error_count > 0;
+    }
+
+    /**
+     * Add a custom header.
+     * $name value can be overloaded to contain
+     * both header name and value (name:value).
+     *
+     * @param string      $name  Custom header name
+     * @param string|null $value Header value
+     */
+    public function addCustomHeader($name, $value = null)
+    {
+        if (null === $value) {
+            // Value passed in as name:value
+            $this->CustomHeader[] = explode(':', $name, 2);
+        } else {
+            $this->CustomHeader[] = [$name, $value];
+        }
+    }
+
+    /**
+     * Returns all custom headers.
+     *
+     * @return array
+     */
+    public function getCustomHeaders()
+    {
+        return $this->CustomHeader;
+    }
+
+    /**
+     * Create a message body from an HTML string.
+     * Automatically inlines images and creates a plain-text version by converting the HTML,
+     * overwriting any existing values in Body and AltBody.
+     * Do not source $message content from user input!
+     * $basedir is prepended when handling relative URLs, e.g. <img src="/images/a.png"> and must not be empty
+     * will look for an image file in $basedir/images/a.png and convert it to inline.
+     * If you don't provide a $basedir, relative paths will be left untouched (and thus probably break in email)
+     * Converts data-uri images into embedded attachments.
+     * If you don't want to apply these transformations to your HTML, just set Body and AltBody directly.
+     *
+     * @param string        $message  HTML message string
+     * @param string        $basedir  Absolute path to a base directory to prepend to relative paths to images
+     * @param bool|callable $advanced Whether to use the internal HTML to text converter
+     *                                or your own custom converter @see PHPMailer::html2text()
+     *
+     * @return string $message The transformed message Body
+     */
+    public function msgHTML($message, $basedir = '', $advanced = false)
+    {
+        preg_match_all('/(src|background)=["\'](.*)["\']/Ui', $message, $images);
+        if (array_key_exists(2, $images)) {
+            if (strlen($basedir) > 1 && '/' != substr($basedir, -1)) {
+                // Ensure $basedir has a trailing /
+                $basedir .= '/';
+            }
+            foreach ($images[2] as $imgindex => $url) {
+                // Convert data URIs into embedded images
+                //e.g. "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw=="
+                if (preg_match('#^data:(image/(?:jpe?g|gif|png));?(base64)?,(.+)#', $url, $match)) {
+                    if (count($match) == 4 and static::ENCODING_BASE64 == $match[2]) {
+                        $data = base64_decode($match[3]);
+                    } elseif ('' == $match[2]) {
+                        $data = rawurldecode($match[3]);
+                    } else {
+                        //Not recognised so leave it alone
+                        continue;
+                    }
+                    //Hash the decoded data, not the URL so that the same data-URI image used in multiple places
+                    //will only be embedded once, even if it used a different encoding
+                    $cid = hash('sha256', $data) . '@phpmailer.0'; // RFC2392 S 2
+
+                    if (!$this->cidExists($cid)) {
+                        $this->addStringEmbeddedImage($data, $cid, 'embed' . $imgindex, static::ENCODING_BASE64, $match[1]);
+                    }
+                    $message = str_replace(
+                        $images[0][$imgindex],
+                        $images[1][$imgindex] . '="cid:' . $cid . '"',
+                        $message
+                    );
+                    continue;
+                }
+                if (// Only process relative URLs if a basedir is provided (i.e. no absolute local paths)
+                    !empty($basedir)
+                    // Ignore URLs containing parent dir traversal (..)
+                    and (strpos($url, '..') === false)
+                    // Do not change urls that are already inline images
+                    and 0 !== strpos($url, 'cid:')
+                    // Do not change absolute URLs, including anonymous protocol
+                    and !preg_match('#^[a-z][a-z0-9+.-]*:?//#i', $url)
+                ) {
+                    $filename = basename($url);
+                    $directory = dirname($url);
+                    if ('.' == $directory) {
+                        $directory = '';
+                    }
+                    $cid = hash('sha256', $url) . '@phpmailer.0'; // RFC2392 S 2
+                    if (strlen($basedir) > 1 and '/' != substr($basedir, -1)) {
+                        $basedir .= '/';
+                    }
+                    if (strlen($directory) > 1 and '/' != substr($directory, -1)) {
+                        $directory .= '/';
+                    }
+                    if ($this->addEmbeddedImage(
+                        $basedir . $directory . $filename,
+                        $cid,
+                        $filename,
+                        static::ENCODING_BASE64,
+                        static::_mime_types((string) static::mb_pathinfo($filename, PATHINFO_EXTENSION))
+                    )
+                    ) {
+                        $message = preg_replace(
+                            '/' . $images[1][$imgindex] . '=["\']' . preg_quote($url, '/') . '["\']/Ui',
+                            $images[1][$imgindex] . '="cid:' . $cid . '"',
+                            $message
+                        );
+                    }
+                }
+            }
+        }
+        $this->isHTML(true);
+        // Convert all message body line breaks to LE, makes quoted-printable encoding work much better
+        $this->Body = static::normalizeBreaks($message);
+        $this->AltBody = static::normalizeBreaks($this->html2text($message, $advanced));
+        if (!$this->alternativeExists()) {
+            $this->AltBody = 'This is an HTML-only message. To view it, activate HTML in your email application.'
+                . static::$LE;
+        }
+
+        return $this->Body;
+    }
+
+    /**
+     * Convert an HTML string into plain text.
+     * This is used by msgHTML().
+     * Note - older versions of this function used a bundled advanced converter
+     * which was removed for license reasons in #232.
+     * Example usage:
+     *
+     * ```php
+     * // Use default conversion
+     * $plain = $mail->html2text($html);
+     * // Use your own custom converter
+     * $plain = $mail->html2text($html, function($html) {
+     *     $converter = new MyHtml2text($html);
+     *     return $converter->get_text();
+     * });
+     * ```
+     *
+     * @param string        $html     The HTML text to convert
+     * @param bool|callable $advanced Any boolean value to use the internal converter,
+     *                                or provide your own callable for custom conversion
+     *
+     * @return string
+     */
+    public function html2text($html, $advanced = false)
+    {
+        if (is_callable($advanced)) {
+            return call_user_func($advanced, $html);
+        }
+
+        return html_entity_decode(
+            trim(strip_tags(preg_replace('/<(head|title|style|script)[^>]*>.*?<\/\\1>/si', '', $html))),
+            ENT_QUOTES,
+            $this->CharSet
+        );
+    }
+
+    /**
+     * Get the MIME type for a file extension.
+     *
+     * @param string $ext File extension
+     *
+     * @return string MIME type of file
+     */
+    public static function _mime_types($ext = '')
+    {
+        $mimes = [
+            'xl' => 'application/excel',
+            'js' => 'application/javascript',
+            'hqx' => 'application/mac-binhex40',
+            'cpt' => 'application/mac-compactpro',
+            'bin' => 'application/macbinary',
+            'doc' => 'application/msword',
+            'word' => 'application/msword',
+            'xlsx' => 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
+            'xltx' => 'application/vnd.openxmlformats-officedocument.spreadsheetml.template',
+            'potx' => 'application/vnd.openxmlformats-officedocument.presentationml.template',
+            'ppsx' => 'application/vnd.openxmlformats-officedocument.presentationml.slideshow',
+            'pptx' => 'application/vnd.openxmlformats-officedocument.presentationml.presentation',
+            'sldx' => 'application/vnd.openxmlformats-officedocument.presentationml.slide',
+            'docx' => 'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
+            'dotx' => 'application/vnd.openxmlformats-officedocument.wordprocessingml.template',
+            'xlam' => 'application/vnd.ms-excel.addin.macroEnabled.12',
+            'xlsb' => 'application/vnd.ms-excel.sheet.binary.macroEnabled.12',
+            'class' => 'application/octet-stream',
+            'dll' => 'application/octet-stream',
+            'dms' => 'application/octet-stream',
+            'exe' => 'application/octet-stream',
+            'lha' => 'application/octet-stream',
+            'lzh' => 'application/octet-stream',
+            'psd' => 'application/octet-stream',
+            'sea' => 'application/octet-stream',
+            'so' => 'application/octet-stream',
+            'oda' => 'application/oda',
+            'pdf' => 'application/pdf',
+            'ai' => 'application/postscript',
+            'eps' => 'application/postscript',
+            'ps' => 'application/postscript',
+            'smi' => 'application/smil',
+            'smil' => 'application/smil',
+            'mif' => 'application/vnd.mif',
+            'xls' => 'application/vnd.ms-excel',
+            'ppt' => 'application/vnd.ms-powerpoint',
+            'wbxml' => 'application/vnd.wap.wbxml',
+            'wmlc' => 'application/vnd.wap.wmlc',
+            'dcr' => 'application/x-director',
+            'dir' => 'application/x-director',
+            'dxr' => 'application/x-director',
+            'dvi' => 'application/x-dvi',
+            'gtar' => 'application/x-gtar',
+            'php3' => 'application/x-httpd-php',
+            'php4' => 'application/x-httpd-php',
+            'php' => 'application/x-httpd-php',
+            'phtml' => 'application/x-httpd-php',
+            'phps' => 'application/x-httpd-php-source',
+            'swf' => 'application/x-shockwave-flash',
+            'sit' => 'application/x-stuffit',
+            'tar' => 'application/x-tar',
+            'tgz' => 'application/x-tar',
+            'xht' => 'application/xhtml+xml',
+            'xhtml' => 'application/xhtml+xml',
+            'zip' => 'application/zip',
+            'mid' => 'audio/midi',
+            'midi' => 'audio/midi',
+            'mp2' => 'audio/mpeg',
+            'mp3' => 'audio/mpeg',
+            'm4a' => 'audio/mp4',
+            'mpga' => 'audio/mpeg',
+            'aif' => 'audio/x-aiff',
+            'aifc' => 'audio/x-aiff',
+            'aiff' => 'audio/x-aiff',
+            'ram' => 'audio/x-pn-realaudio',
+            'rm' => 'audio/x-pn-realaudio',
+            'rpm' => 'audio/x-pn-realaudio-plugin',
+            'ra' => 'audio/x-realaudio',
+            'wav' => 'audio/x-wav',
+            'mka' => 'audio/x-matroska',
+            'bmp' => 'image/bmp',
+            'gif' => 'image/gif',
+            'jpeg' => 'image/jpeg',
+            'jpe' => 'image/jpeg',
+            'jpg' => 'image/jpeg',
+            'png' => 'image/png',
+            'tiff' => 'image/tiff',
+            'tif' => 'image/tiff',
+            'webp' => 'image/webp',
+            'heif' => 'image/heif',
+            'heifs' => 'image/heif-sequence',
+            'heic' => 'image/heic',
+            'heics' => 'image/heic-sequence',
+            'eml' => 'message/rfc822',
+            'css' => 'text/css',
+            'html' => 'text/html',
+            'htm' => 'text/html',
+            'shtml' => 'text/html',
+            'log' => 'text/plain',
+            'text' => 'text/plain',
+            'txt' => 'text/plain',
+            'rtx' => 'text/richtext',
+            'rtf' => 'text/rtf',
+            'vcf' => 'text/vcard',
+            'vcard' => 'text/vcard',
+            'ics' => 'text/calendar',
+            'xml' => 'text/xml',
+            'xsl' => 'text/xml',
+            'wmv' => 'video/x-ms-wmv',
+            'mpeg' => 'video/mpeg',
+            'mpe' => 'video/mpeg',
+            'mpg' => 'video/mpeg',
+            'mp4' => 'video/mp4',
+            'm4v' => 'video/mp4',
+            'mov' => 'video/quicktime',
+            'qt' => 'video/quicktime',
+            'rv' => 'video/vnd.rn-realvideo',
+            'avi' => 'video/x-msvideo',
+            'movie' => 'video/x-sgi-movie',
+            'webm' => 'video/webm',
+            'mkv' => 'video/x-matroska',
+        ];
+        $ext = strtolower($ext);
+        if (array_key_exists($ext, $mimes)) {
+            return $mimes[$ext];
+        }
+
+        return 'application/octet-stream';
+    }
+
+    /**
+     * Map a file name to a MIME type.
+     * Defaults to 'application/octet-stream', i.e.. arbitrary binary data.
+     *
+     * @param string $filename A file name or full path, does not need to exist as a file
+     *
+     * @return string
+     */
+    public static function filenameToType($filename)
+    {
+        // In case the path is a URL, strip any query string before getting extension
+        $qpos = strpos($filename, '?');
+        if (false !== $qpos) {
+            $filename = substr($filename, 0, $qpos);
+        }
+        $ext = static::mb_pathinfo($filename, PATHINFO_EXTENSION);
+
+        return static::_mime_types($ext);
+    }
+
+    /**
+     * Multi-byte-safe pathinfo replacement.
+     * Drop-in replacement for pathinfo(), but multibyte- and cross-platform-safe.
+     *
+     * @see    http://www.php.net/manual/en/function.pathinfo.php#107461
+     *
+     * @param string     $path    A filename or path, does not need to exist as a file
+     * @param int|string $options Either a PATHINFO_* constant,
+     *                            or a string name to return only the specified piece
+     *
+     * @return string|array
+     */
+    public static function mb_pathinfo($path, $options = null)
+    {
+        $ret = ['dirname' => '', 'basename' => '', 'extension' => '', 'filename' => ''];
+        $pathinfo = [];
+        if (preg_match('#^(.*?)[\\\\/]*(([^/\\\\]*?)(\.([^\.\\\\/]+?)|))[\\\\/\.]*$#im', $path, $pathinfo)) {
+            if (array_key_exists(1, $pathinfo)) {
+                $ret['dirname'] = $pathinfo[1];
+            }
+            if (array_key_exists(2, $pathinfo)) {
+                $ret['basename'] = $pathinfo[2];
+            }
+            if (array_key_exists(5, $pathinfo)) {
+                $ret['extension'] = $pathinfo[5];
+            }
+            if (array_key_exists(3, $pathinfo)) {
+                $ret['filename'] = $pathinfo[3];
+            }
+        }
+        switch ($options) {
+            case PATHINFO_DIRNAME:
+            case 'dirname':
+                return $ret['dirname'];
+            case PATHINFO_BASENAME:
+            case 'basename':
+                return $ret['basename'];
+            case PATHINFO_EXTENSION:
+            case 'extension':
+                return $ret['extension'];
+            case PATHINFO_FILENAME:
+            case 'filename':
+                return $ret['filename'];
+            default:
+                return $ret;
+        }
+    }
+
+    /**
+     * Set or reset instance properties.
+     * You should avoid this function - it's more verbose, less efficient, more error-prone and
+     * harder to debug than setting properties directly.
+     * Usage Example:
+     * `$mail->set('SMTPSecure', 'tls');`
+     *   is the same as:
+     * `$mail->SMTPSecure = 'tls';`.
+     *
+     * @param string $name  The property name to set
+     * @param mixed  $value The value to set the property to
+     *
+     * @return bool
+     */
+    public function set($name, $value = '')
+    {
+        if (property_exists($this, $name)) {
+            $this->$name = $value;
+
+            return true;
+        }
+        $this->setError($this->lang('variable_set') . $name);
+
+        return false;
+    }
+
+    /**
+     * Strip newlines to prevent header injection.
+     *
+     * @param string $str
+     *
+     * @return string
+     */
+    public function secureHeader($str)
+    {
+        return trim(str_replace(["\r", "\n"], '', $str));
+    }
+
+    /**
+     * Normalize line breaks in a string.
+     * Converts UNIX LF, Mac CR and Windows CRLF line breaks into a single line break format.
+     * Defaults to CRLF (for message bodies) and preserves consecutive breaks.
+     *
+     * @param string $text
+     * @param string $breaktype What kind of line break to use; defaults to static::$LE
+     *
+     * @return string
+     */
+    public static function normalizeBreaks($text, $breaktype = null)
+    {
+        if (null === $breaktype) {
+            $breaktype = static::$LE;
+        }
+        // Normalise to \n
+        $text = str_replace(["\r\n", "\r"], "\n", $text);
+        // Now convert LE as needed
+        if ("\n" !== $breaktype) {
+            $text = str_replace("\n", $breaktype, $text);
+        }
+
+        return $text;
+    }
+
+    /**
+     * Return the current line break format string.
+     *
+     * @return string
+     */
+    public static function getLE()
+    {
+        return static::$LE;
+    }
+
+    /**
+     * Set the line break format string, e.g. "\r\n".
+     *
+     * @param string $le
+     */
+    protected static function setLE($le)
+    {
+        static::$LE = $le;
+    }
+
+    /**
+     * Set the public and private key files and password for S/MIME signing.
+     *
+     * @param string $cert_filename
+     * @param string $key_filename
+     * @param string $key_pass            Password for private key
+     * @param string $extracerts_filename Optional path to chain certificate
+     */
+    public function sign($cert_filename, $key_filename, $key_pass, $extracerts_filename = '')
+    {
+        $this->sign_cert_file = $cert_filename;
+        $this->sign_key_file = $key_filename;
+        $this->sign_key_pass = $key_pass;
+        $this->sign_extracerts_file = $extracerts_filename;
+    }
+
+    /**
+     * Quoted-Printable-encode a DKIM header.
+     *
+     * @param string $txt
+     *
+     * @return string
+     */
+    public function DKIM_QP($txt)
+    {
+        $line = '';
+        $len = strlen($txt);
+        for ($i = 0; $i < $len; ++$i) {
+            $ord = ord($txt[$i]);
+            if (((0x21 <= $ord) and ($ord <= 0x3A)) or $ord == 0x3C or ((0x3E <= $ord) and ($ord <= 0x7E))) {
+                $line .= $txt[$i];
+            } else {
+                $line .= '=' . sprintf('%02X', $ord);
+            }
+        }
+
+        return $line;
+    }
+
+    /**
+     * Generate a DKIM signature.
+     *
+     * @param string $signHeader
+     *
+     * @throws Exception
+     *
+     * @return string The DKIM signature value
+     */
+    public function DKIM_Sign($signHeader)
+    {
+        if (!defined('PKCS7_TEXT')) {
+            if ($this->exceptions) {
+                throw new Exception($this->lang('extension_missing') . 'openssl');
+            }
+
+            return '';
+        }
+        $privKeyStr = !empty($this->DKIM_private_string) ?
+            $this->DKIM_private_string :
+            file_get_contents($this->DKIM_private);
+        if ('' != $this->DKIM_passphrase) {
+            $privKey = openssl_pkey_get_private($privKeyStr, $this->DKIM_passphrase);
+        } else {
+            $privKey = openssl_pkey_get_private($privKeyStr);
+        }
+        if (openssl_sign($signHeader, $signature, $privKey, 'sha256WithRSAEncryption')) {
+            openssl_pkey_free($privKey);
+
+            return base64_encode($signature);
+        }
+        openssl_pkey_free($privKey);
+
+        return '';
+    }
+
+    /**
+     * Generate a DKIM canonicalization header.
+     * Uses the 'relaxed' algorithm from RFC6376 section 3.4.2.
+     * Canonicalized headers should *always* use CRLF, regardless of mailer setting.
+     *
+     * @see    https://tools.ietf.org/html/rfc6376#section-3.4.2
+     *
+     * @param string $signHeader Header
+     *
+     * @return string
+     */
+    public function DKIM_HeaderC($signHeader)
+    {
+        //Unfold all header continuation lines
+        //Also collapses folded whitespace.
+        //Note PCRE \s is too broad a definition of whitespace; RFC5322 defines it as `[ \t]`
+        //@see https://tools.ietf.org/html/rfc5322#section-2.2
+        //That means this may break if you do something daft like put vertical tabs in your headers.
+        $signHeader = preg_replace('/\r\n[ \t]+/', ' ', $signHeader);
+        $lines = explode("\r\n", $signHeader);
+        foreach ($lines as $key => $line) {
+            //If the header is missing a :, skip it as it's invalid
+            //This is likely to happen because the explode() above will also split
+            //on the trailing LE, leaving an empty line
+            if (strpos($line, ':') === false) {
+                continue;
+            }
+            list($heading, $value) = explode(':', $line, 2);
+            //Lower-case header name
+            $heading = strtolower($heading);
+            //Collapse white space within the value
+            $value = preg_replace('/[ \t]{2,}/', ' ', $value);
+            //RFC6376 is slightly unclear here - it says to delete space at the *end* of each value
+            //But then says to delete space before and after the colon.
+            //Net result is the same as trimming both ends of the value.
+            //by elimination, the same applies to the field name
+            $lines[$key] = trim($heading, " \t") . ':' . trim($value, " \t");
+        }
+
+        return implode("\r\n", $lines);
+    }
+
+    /**
+     * Generate a DKIM canonicalization body.
+     * Uses the 'simple' algorithm from RFC6376 section 3.4.3.
+     * Canonicalized bodies should *always* use CRLF, regardless of mailer setting.
+     *
+     * @see    https://tools.ietf.org/html/rfc6376#section-3.4.3
+     *
+     * @param string $body Message Body
+     *
+     * @return string
+     */
+    public function DKIM_BodyC($body)
+    {
+        if (empty($body)) {
+            return "\r\n";
+        }
+        // Normalize line endings to CRLF
+        $body = static::normalizeBreaks($body, "\r\n");
+
+        //Reduce multiple trailing line breaks to a single one
+        return rtrim($body, "\r\n") . "\r\n";
+    }
+
+    /**
+     * Create the DKIM header and body in a new message header.
+     *
+     * @param string $headers_line Header lines
+     * @param string $subject      Subject
+     * @param string $body         Body
+     *
+     * @return string
+     */
+    public function DKIM_Add($headers_line, $subject, $body)
+    {
+        $DKIMsignatureType = 'rsa-sha256'; // Signature & hash algorithms
+        $DKIMcanonicalization = 'relaxed/simple'; // Canonicalization of header/body
+        $DKIMquery = 'dns/txt'; // Query method
+        $DKIMtime = time(); // Signature Timestamp = seconds since 00:00:00 - Jan 1, 1970 (UTC time zone)
+        $subject_header = "Subject: $subject";
+        $headers = explode(static::$LE, $headers_line);
+        $from_header = '';
+        $to_header = '';
+        $date_header = '';
+        $current = '';
+        $copiedHeaderFields = '';
+        $foundExtraHeaders = [];
+        $extraHeaderKeys = '';
+        $extraHeaderValues = '';
+        $extraCopyHeaderFields = '';
+        foreach ($headers as $header) {
+            if (strpos($header, 'From:') === 0) {
+                $from_header = $header;
+                $current = 'from_header';
+            } elseif (strpos($header, 'To:') === 0) {
+                $to_header = $header;
+                $current = 'to_header';
+            } elseif (strpos($header, 'Date:') === 0) {
+                $date_header = $header;
+                $current = 'date_header';
+            } elseif (!empty($this->DKIM_extraHeaders)) {
+                foreach ($this->DKIM_extraHeaders as $extraHeader) {
+                    if (strpos($header, $extraHeader . ':') === 0) {
+                        $headerValue = $header;
+                        foreach ($this->CustomHeader as $customHeader) {
+                            if ($customHeader[0] === $extraHeader) {
+                                $headerValue = trim($customHeader[0]) .
+                                               ': ' .
+                                               $this->encodeHeader(trim($customHeader[1]));
+                                break;
+                            }
+                        }
+                        $foundExtraHeaders[$extraHeader] = $headerValue;
+                        $current = '';
+                        break;
+                    }
+                }
+            } else {
+                if (!empty($$current) and strpos($header, ' =?') === 0) {
+                    $$current .= $header;
+                } else {
+                    $current = '';
+                }
+            }
+        }
+        foreach ($foundExtraHeaders as $key => $value) {
+            $extraHeaderKeys .= ':' . $key;
+            $extraHeaderValues .= $value . "\r\n";
+            if ($this->DKIM_copyHeaderFields) {
+                $extraCopyHeaderFields .= "\t|" . str_replace('|', '=7C', $this->DKIM_QP($value)) . ";\r\n";
+            }
+        }
+        if ($this->DKIM_copyHeaderFields) {
+            $from = str_replace('|', '=7C', $this->DKIM_QP($from_header));
+            $to = str_replace('|', '=7C', $this->DKIM_QP($to_header));
+            $date = str_replace('|', '=7C', $this->DKIM_QP($date_header));
+            $subject = str_replace('|', '=7C', $this->DKIM_QP($subject_header));
+            $copiedHeaderFields = "\tz=$from\r\n" .
+                                  "\t|$to\r\n" .
+                                  "\t|$date\r\n" .
+                                  "\t|$subject;\r\n" .
+                                  $extraCopyHeaderFields;
+        }
+        $body = $this->DKIM_BodyC($body);
+        $DKIMlen = strlen($body); // Length of body
+        $DKIMb64 = base64_encode(pack('H*', hash('sha256', $body))); // Base64 of packed binary SHA-256 hash of body
+        if ('' == $this->DKIM_identity) {
+            $ident = '';
+        } else {
+            $ident = ' i=' . $this->DKIM_identity . ';';
+        }
+        $dkimhdrs = 'DKIM-Signature: v=1; a=' .
+            $DKIMsignatureType . '; q=' .
+            $DKIMquery . '; l=' .
+            $DKIMlen . '; s=' .
+            $this->DKIM_selector .
+            ";\r\n" .
+            "\tt=" . $DKIMtime . '; c=' . $DKIMcanonicalization . ";\r\n" .
+            "\th=From:To:Date:Subject" . $extraHeaderKeys . ";\r\n" .
+            "\td=" . $this->DKIM_domain . ';' . $ident . "\r\n" .
+            $copiedHeaderFields .
+            "\tbh=" . $DKIMb64 . ";\r\n" .
+            "\tb=";
+        $toSign = $this->DKIM_HeaderC(
+            $from_header . "\r\n" .
+            $to_header . "\r\n" .
+            $date_header . "\r\n" .
+            $subject_header . "\r\n" .
+            $extraHeaderValues .
+            $dkimhdrs
+        );
+        $signed = $this->DKIM_Sign($toSign);
+
+        return static::normalizeBreaks($dkimhdrs . $signed) . static::$LE;
+    }
+
+    /**
+     * Detect if a string contains a line longer than the maximum line length
+     * allowed by RFC 2822 section 2.1.1.
+     *
+     * @param string $str
+     *
+     * @return bool
+     */
+    public static function hasLineLongerThanMax($str)
+    {
+        return (bool) preg_match('/^(.{' . (self::MAX_LINE_LENGTH + strlen(static::$LE)) . ',})/m', $str);
+    }
+
+    /**
+     * Allows for public read access to 'to' property.
+     * Before the send() call, queued addresses (i.e. with IDN) are not yet included.
+     *
+     * @return array
+     */
+    public function getToAddresses()
+    {
+        return $this->to;
+    }
+
+    /**
+     * Allows for public read access to 'cc' property.
+     * Before the send() call, queued addresses (i.e. with IDN) are not yet included.
+     *
+     * @return array
+     */
+    public function getCcAddresses()
+    {
+        return $this->cc;
+    }
+
+    /**
+     * Allows for public read access to 'bcc' property.
+     * Before the send() call, queued addresses (i.e. with IDN) are not yet included.
+     *
+     * @return array
+     */
+    public function getBccAddresses()
+    {
+        return $this->bcc;
+    }
+
+    /**
+     * Allows for public read access to 'ReplyTo' property.
+     * Before the send() call, queued addresses (i.e. with IDN) are not yet included.
+     *
+     * @return array
+     */
+    public function getReplyToAddresses()
+    {
+        return $this->ReplyTo;
+    }
+
+    /**
+     * Allows for public read access to 'all_recipients' property.
+     * Before the send() call, queued addresses (i.e. with IDN) are not yet included.
+     *
+     * @return array
+     */
+    public function getAllRecipientAddresses()
+    {
+        return $this->all_recipients;
+    }
+
+    /**
+     * Perform a callback.
+     *
+     * @param bool   $isSent
+     * @param array  $to
+     * @param array  $cc
+     * @param array  $bcc
+     * @param string $subject
+     * @param string $body
+     * @param string $from
+     * @param array  $extra
+     */
+    protected function doCallback($isSent, $to, $cc, $bcc, $subject, $body, $from, $extra)
+    {
+        if (!empty($this->action_function) and is_callable($this->action_function)) {
+            call_user_func($this->action_function, $isSent, $to, $cc, $bcc, $subject, $body, $from, $extra);
+        }
+    }
+
+    /**
+     * Get the OAuth instance.
+     *
+     * @return OAuth
+     */
+    public function getOAuth()
+    {
+        return $this->oauth;
+    }
+
+    /**
+     * Set an OAuth instance.
+     *
+     * @param OAuth $oauth
+     */
+    public function setOAuth(OAuth $oauth)
+    {
+        $this->oauth = $oauth;
+    }
+}
diff --git a/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/lib/POP3.php b/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/lib/POP3.php
new file mode 100644
index 0000000..9b51c8a
--- /dev/null
+++ b/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/lib/POP3.php
@@ -0,0 +1,419 @@
+<?php
+/**
+ * PHPMailer POP-Before-SMTP Authentication Class.
+ * PHP Version 5.5.
+ *
+ * @see       https://github.com/PHPMailer/PHPMailer/ The PHPMailer GitHub project
+ *
+ * @author    Marcus Bointon (Synchro/coolbru) <phpmailer@synchromedia.co.uk>
+ * @author    Jim Jagielski (jimjag) <jimjag@gmail.com>
+ * @author    Andy Prevost (codeworxtech) <codeworxtech@users.sourceforge.net>
+ * @author    Brent R. Matzelle (original founder)
+ * @copyright 2012 - 2017 Marcus Bointon
+ * @copyright 2010 - 2012 Jim Jagielski
+ * @copyright 2004 - 2009 Andy Prevost
+ * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @note      This program is distributed in the hope that it will be useful - WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+namespace PHPMailer\PHPMailer;
+
+/**
+ * PHPMailer POP-Before-SMTP Authentication Class.
+ * Specifically for PHPMailer to use for RFC1939 POP-before-SMTP authentication.
+ * 1) This class does not support APOP authentication.
+ * 2) Opening and closing lots of POP3 connections can be quite slow. If you need
+ *   to send a batch of emails then just perform the authentication once at the start,
+ *   and then loop through your mail sending script. Providing this process doesn't
+ *   take longer than the verification period lasts on your POP3 server, you should be fine.
+ * 3) This is really ancient technology; you should only need to use it to talk to very old systems.
+ * 4) This POP3 class is deliberately lightweight and incomplete, and implements just
+ *   enough to do authentication.
+ *   If you want a more complete class there are other POP3 classes for PHP available.
+ *
+ * @author  Richard Davey (original author) <rich@corephp.co.uk>
+ * @author  Marcus Bointon (Synchro/coolbru) <phpmailer@synchromedia.co.uk>
+ * @author  Jim Jagielski (jimjag) <jimjag@gmail.com>
+ * @author  Andy Prevost (codeworxtech) <codeworxtech@users.sourceforge.net>
+ */
+class POP3
+{
+    /**
+     * The POP3 PHPMailer Version number.
+     *
+     * @var string
+     */
+    const VERSION = '6.0.5';
+
+    /**
+     * Default POP3 port number.
+     *
+     * @var int
+     */
+    const DEFAULT_PORT = 110;
+
+    /**
+     * Default timeout in seconds.
+     *
+     * @var int
+     */
+    const DEFAULT_TIMEOUT = 30;
+
+    /**
+     * Debug display level.
+     * Options: 0 = no, 1+ = yes.
+     *
+     * @var int
+     */
+    public $do_debug = 0;
+
+    /**
+     * POP3 mail server hostname.
+     *
+     * @var string
+     */
+    public $host;
+
+    /**
+     * POP3 port number.
+     *
+     * @var int
+     */
+    public $port;
+
+    /**
+     * POP3 Timeout Value in seconds.
+     *
+     * @var int
+     */
+    public $tval;
+
+    /**
+     * POP3 username.
+     *
+     * @var string
+     */
+    public $username;
+
+    /**
+     * POP3 password.
+     *
+     * @var string
+     */
+    public $password;
+
+    /**
+     * Resource handle for the POP3 connection socket.
+     *
+     * @var resource
+     */
+    protected $pop_conn;
+
+    /**
+     * Are we connected?
+     *
+     * @var bool
+     */
+    protected $connected = false;
+
+    /**
+     * Error container.
+     *
+     * @var array
+     */
+    protected $errors = [];
+
+    /**
+     * Line break constant.
+     */
+    const LE = "\r\n";
+
+    /**
+     * Simple static wrapper for all-in-one POP before SMTP.
+     *
+     * @param string   $host        The hostname to connect to
+     * @param int|bool $port        The port number to connect to
+     * @param int|bool $timeout     The timeout value
+     * @param string   $username
+     * @param string   $password
+     * @param int      $debug_level
+     *
+     * @return bool
+     */
+    public static function popBeforeSmtp(
+        $host,
+        $port = false,
+        $timeout = false,
+        $username = '',
+        $password = '',
+        $debug_level = 0
+    ) {
+        $pop = new self();
+
+        return $pop->authorise($host, $port, $timeout, $username, $password, $debug_level);
+    }
+
+    /**
+     * Authenticate with a POP3 server.
+     * A connect, login, disconnect sequence
+     * appropriate for POP-before SMTP authorisation.
+     *
+     * @param string   $host        The hostname to connect to
+     * @param int|bool $port        The port number to connect to
+     * @param int|bool $timeout     The timeout value
+     * @param string   $username
+     * @param string   $password
+     * @param int      $debug_level
+     *
+     * @return bool
+     */
+    public function authorise($host, $port = false, $timeout = false, $username = '', $password = '', $debug_level = 0)
+    {
+        $this->host = $host;
+        // If no port value provided, use default
+        if (false === $port) {
+            $this->port = static::DEFAULT_PORT;
+        } else {
+            $this->port = (int) $port;
+        }
+        // If no timeout value provided, use default
+        if (false === $timeout) {
+            $this->tval = static::DEFAULT_TIMEOUT;
+        } else {
+            $this->tval = (int) $timeout;
+        }
+        $this->do_debug = $debug_level;
+        $this->username = $username;
+        $this->password = $password;
+        //  Reset the error log
+        $this->errors = [];
+        //  connect
+        $result = $this->connect($this->host, $this->port, $this->tval);
+        if ($result) {
+            $login_result = $this->login($this->username, $this->password);
+            if ($login_result) {
+                $this->disconnect();
+
+                return true;
+            }
+        }
+        // We need to disconnect regardless of whether the login succeeded
+        $this->disconnect();
+
+        return false;
+    }
+
+    /**
+     * Connect to a POP3 server.
+     *
+     * @param string   $host
+     * @param int|bool $port
+     * @param int      $tval
+     *
+     * @return bool
+     */
+    public function connect($host, $port = false, $tval = 30)
+    {
+        //  Are we already connected?
+        if ($this->connected) {
+            return true;
+        }
+
+        //On Windows this will raise a PHP Warning error if the hostname doesn't exist.
+        //Rather than suppress it with @fsockopen, capture it cleanly instead
+        set_error_handler([$this, 'catchWarning']);
+
+        if (false === $port) {
+            $port = static::DEFAULT_PORT;
+        }
+
+        //  connect to the POP3 server
+        $this->pop_conn = fsockopen(
+            $host, //  POP3 Host
+            $port, //  Port #
+            $errno, //  Error Number
+            $errstr, //  Error Message
+            $tval
+        ); //  Timeout (seconds)
+        //  Restore the error handler
+        restore_error_handler();
+
+        //  Did we connect?
+        if (false === $this->pop_conn) {
+            //  It would appear not...
+            $this->setError(
+                "Failed to connect to server $host on port $port. errno: $errno; errstr: $errstr"
+            );
+
+            return false;
+        }
+
+        //  Increase the stream time-out
+        stream_set_timeout($this->pop_conn, $tval, 0);
+
+        //  Get the POP3 server response
+        $pop3_response = $this->getResponse();
+        //  Check for the +OK
+        if ($this->checkResponse($pop3_response)) {
+            //  The connection is established and the POP3 server is talking
+            $this->connected = true;
+
+            return true;
+        }
+
+        return false;
+    }
+
+    /**
+     * Log in to the POP3 server.
+     * Does not support APOP (RFC 2828, 4949).
+     *
+     * @param string $username
+     * @param string $password
+     *
+     * @return bool
+     */
+    public function login($username = '', $password = '')
+    {
+        if (!$this->connected) {
+            $this->setError('Not connected to POP3 server');
+        }
+        if (empty($username)) {
+            $username = $this->username;
+        }
+        if (empty($password)) {
+            $password = $this->password;
+        }
+
+        // Send the Username
+        $this->sendString("USER $username" . static::LE);
+        $pop3_response = $this->getResponse();
+        if ($this->checkResponse($pop3_response)) {
+            // Send the Password
+            $this->sendString("PASS $password" . static::LE);
+            $pop3_response = $this->getResponse();
+            if ($this->checkResponse($pop3_response)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * Disconnect from the POP3 server.
+     */
+    public function disconnect()
+    {
+        $this->sendString('QUIT');
+        //The QUIT command may cause the daemon to exit, which will kill our connection
+        //So ignore errors here
+        try {
+            @fclose($this->pop_conn);
+        } catch (Exception $e) {
+            //Do nothing
+        }
+    }
+
+    /**
+     * Get a response from the POP3 server.
+     *
+     * @param int $size The maximum number of bytes to retrieve
+     *
+     * @return string
+     */
+    protected function getResponse($size = 128)
+    {
+        $response = fgets($this->pop_conn, $size);
+        if ($this->do_debug >= 1) {
+            echo 'Server -> Client: ', $response;
+        }
+
+        return $response;
+    }
+
+    /**
+     * Send raw data to the POP3 server.
+     *
+     * @param string $string
+     *
+     * @return int
+     */
+    protected function sendString($string)
+    {
+        if ($this->pop_conn) {
+            if ($this->do_debug >= 2) { //Show client messages when debug >= 2
+                echo 'Client -> Server: ', $string;
+            }
+
+            return fwrite($this->pop_conn, $string, strlen($string));
+        }
+
+        return 0;
+    }
+
+    /**
+     * Checks the POP3 server response.
+     * Looks for for +OK or -ERR.
+     *
+     * @param string $string
+     *
+     * @return bool
+     */
+    protected function checkResponse($string)
+    {
+        if (substr($string, 0, 3) !== '+OK') {
+            $this->setError("Server reported an error: $string");
+
+            return false;
+        }
+
+        return true;
+    }
+
+    /**
+     * Add an error to the internal error store.
+     * Also display debug output if it's enabled.
+     *
+     * @param string $error
+     */
+    protected function setError($error)
+    {
+        $this->errors[] = $error;
+        if ($this->do_debug >= 1) {
+            echo '<pre>';
+            foreach ($this->errors as $e) {
+                print_r($e);
+            }
+            echo '</pre>';
+        }
+    }
+
+    /**
+     * Get an array of error messages, if any.
+     *
+     * @return array
+     */
+    public function getErrors()
+    {
+        return $this->errors;
+    }
+
+    /**
+     * POP3 connection error handler.
+     *
+     * @param int    $errno
+     * @param string $errstr
+     * @param string $errfile
+     * @param int    $errline
+     */
+    protected function catchWarning($errno, $errstr, $errfile, $errline)
+    {
+        $this->setError(
+            'Connecting to the POP3 server raised a PHP warning:' .
+            "errno: $errno errstr: $errstr; errfile: $errfile; errline: $errline"
+        );
+    }
+}
diff --git a/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/lib/SMTP.php b/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/lib/SMTP.php
new file mode 100644
index 0000000..13d2ebe
--- /dev/null
+++ b/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/lib/SMTP.php
@@ -0,0 +1,1326 @@
+<?php
+/**
+ * PHPMailer RFC821 SMTP email transport class.
+ * PHP Version 5.5.
+ *
+ * @see       https://github.com/PHPMailer/PHPMailer/ The PHPMailer GitHub project
+ *
+ * @author    Marcus Bointon (Synchro/coolbru) <phpmailer@synchromedia.co.uk>
+ * @author    Jim Jagielski (jimjag) <jimjag@gmail.com>
+ * @author    Andy Prevost (codeworxtech) <codeworxtech@users.sourceforge.net>
+ * @author    Brent R. Matzelle (original founder)
+ * @copyright 2012 - 2017 Marcus Bointon
+ * @copyright 2010 - 2012 Jim Jagielski
+ * @copyright 2004 - 2009 Andy Prevost
+ * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @note      This program is distributed in the hope that it will be useful - WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+namespace PHPMailer\PHPMailer;
+
+/**
+ * PHPMailer RFC821 SMTP email transport class.
+ * Implements RFC 821 SMTP commands and provides some utility methods for sending mail to an SMTP server.
+ *
+ * @author  Chris Ryan
+ * @author  Marcus Bointon <phpmailer@synchromedia.co.uk>
+ */
+class SMTP
+{
+    /**
+     * The PHPMailer SMTP version number.
+     *
+     * @var string
+     */
+    const VERSION = '6.0.5';
+
+    /**
+     * SMTP line break constant.
+     *
+     * @var string
+     */
+    const LE = "\r\n";
+
+    /**
+     * The SMTP port to use if one is not specified.
+     *
+     * @var int
+     */
+    const DEFAULT_PORT = 25;
+
+    /**
+     * The maximum line length allowed by RFC 2822 section 2.1.1.
+     *
+     * @var int
+     */
+    const MAX_LINE_LENGTH = 998;
+
+    /**
+     * Debug level for no output.
+     */
+    const DEBUG_OFF = 0;
+
+    /**
+     * Debug level to show client -> server messages.
+     */
+    const DEBUG_CLIENT = 1;
+
+    /**
+     * Debug level to show client -> server and server -> client messages.
+     */
+    const DEBUG_SERVER = 2;
+
+    /**
+     * Debug level to show connection status, client -> server and server -> client messages.
+     */
+    const DEBUG_CONNECTION = 3;
+
+    /**
+     * Debug level to show all messages.
+     */
+    const DEBUG_LOWLEVEL = 4;
+
+    /**
+     * Debug output level.
+     * Options:
+     * * self::DEBUG_OFF (`0`) No debug output, default
+     * * self::DEBUG_CLIENT (`1`) Client commands
+     * * self::DEBUG_SERVER (`2`) Client commands and server responses
+     * * self::DEBUG_CONNECTION (`3`) As DEBUG_SERVER plus connection status
+     * * self::DEBUG_LOWLEVEL (`4`) Low-level data output, all messages.
+     *
+     * @var int
+     */
+    public $do_debug = self::DEBUG_OFF;
+
+    /**
+     * How to handle debug output.
+     * Options:
+     * * `echo` Output plain-text as-is, appropriate for CLI
+     * * `html` Output escaped, line breaks converted to `<br>`, appropriate for browser output
+     * * `error_log` Output to error log as configured in php.ini
+     * Alternatively, you can provide a callable expecting two params: a message string and the debug level:
+     *
+     * ```php
+     * $smtp->Debugoutput = function($str, $level) {echo "debug level $level; message: $str";};
+     * ```
+     *
+     * Alternatively, you can pass in an instance of a PSR-3 compatible logger, though only `debug`
+     * level output is used:
+     *
+     * ```php
+     * $mail->Debugoutput = new myPsr3Logger;
+     * ```
+     *
+     * @var string|callable|\Psr\Log\LoggerInterface
+     */
+    public $Debugoutput = 'echo';
+
+    /**
+     * Whether to use VERP.
+     *
+     * @see http://en.wikipedia.org/wiki/Variable_envelope_return_path
+     * @see http://www.postfix.org/VERP_README.html Info on VERP
+     *
+     * @var bool
+     */
+    public $do_verp = false;
+
+    /**
+     * The timeout value for connection, in seconds.
+     * Default of 5 minutes (300sec) is from RFC2821 section 4.5.3.2.
+     * This needs to be quite high to function correctly with hosts using greetdelay as an anti-spam measure.
+     *
+     * @see http://tools.ietf.org/html/rfc2821#section-4.5.3.2
+     *
+     * @var int
+     */
+    public $Timeout = 300;
+
+    /**
+     * How long to wait for commands to complete, in seconds.
+     * Default of 5 minutes (300sec) is from RFC2821 section 4.5.3.2.
+     *
+     * @var int
+     */
+    public $Timelimit = 300;
+
+    /**
+     * Patterns to extract an SMTP transaction id from reply to a DATA command.
+     * The first capture group in each regex will be used as the ID.
+     * MS ESMTP returns the message ID, which may not be correct for internal tracking.
+     *
+     * @var string[]
+     */
+    protected $smtp_transaction_id_patterns = [
+        'exim' => '/[\d]{3} OK id=(.*)/',
+        'sendmail' => '/[\d]{3} 2.0.0 (.*) Message/',
+        'postfix' => '/[\d]{3} 2.0.0 Ok: queued as (.*)/',
+        'Microsoft_ESMTP' => '/[0-9]{3} 2.[\d].0 (.*)@(?:.*) Queued mail for delivery/',
+        'Amazon_SES' => '/[\d]{3} Ok (.*)/',
+        'SendGrid' => '/[\d]{3} Ok: queued as (.*)/',
+        'CampaignMonitor' => '/[\d]{3} 2.0.0 OK:([a-zA-Z\d]{48})/',
+    ];
+
+    /**
+     * The last transaction ID issued in response to a DATA command,
+     * if one was detected.
+     *
+     * @var string|bool|null
+     */
+    protected $last_smtp_transaction_id;
+
+    /**
+     * The socket for the server connection.
+     *
+     * @var ?resource
+     */
+    protected $smtp_conn;
+
+    /**
+     * Error information, if any, for the last SMTP command.
+     *
+     * @var array
+     */
+    protected $error = [
+        'error' => '',
+        'detail' => '',
+        'smtp_code' => '',
+        'smtp_code_ex' => '',
+    ];
+
+    /**
+     * The reply the server sent to us for HELO.
+     * If null, no HELO string has yet been received.
+     *
+     * @var string|null
+     */
+    protected $helo_rply = null;
+
+    /**
+     * The set of SMTP extensions sent in reply to EHLO command.
+     * Indexes of the array are extension names.
+     * Value at index 'HELO' or 'EHLO' (according to command that was sent)
+     * represents the server name. In case of HELO it is the only element of the array.
+     * Other values can be boolean TRUE or an array containing extension options.
+     * If null, no HELO/EHLO string has yet been received.
+     *
+     * @var array|null
+     */
+    protected $server_caps = null;
+
+    /**
+     * The most recent reply received from the server.
+     *
+     * @var string
+     */
+    protected $last_reply = '';
+
+    /**
+     * Output debugging info via a user-selected method.
+     *
+     * @param string $str   Debug string to output
+     * @param int    $level The debug level of this message; see DEBUG_* constants
+     *
+     * @see SMTP::$Debugoutput
+     * @see SMTP::$do_debug
+     */
+    protected function edebug($str, $level = 0)
+    {
+        if ($level > $this->do_debug) {
+            return;
+        }
+        //Is this a PSR-3 logger?
+        if ($this->Debugoutput instanceof \Psr\Log\LoggerInterface) {
+            $this->Debugoutput->debug($str);
+
+            return;
+        }
+        //Avoid clash with built-in function names
+        if (!in_array($this->Debugoutput, ['error_log', 'html', 'echo']) and is_callable($this->Debugoutput)) {
+            call_user_func($this->Debugoutput, $str, $level);
+
+            return;
+        }
+        switch ($this->Debugoutput) {
+            case 'error_log':
+                //Don't output, just log
+                error_log($str);
+                break;
+            case 'html':
+                //Cleans up output a bit for a better looking, HTML-safe output
+                echo gmdate('Y-m-d H:i:s'), ' ', htmlentities(
+                    preg_replace('/[\r\n]+/', '', $str),
+                    ENT_QUOTES,
+                    'UTF-8'
+                ), "<br>\n";
+                break;
+            case 'echo':
+            default:
+                //Normalize line breaks
+                $str = preg_replace('/\r\n|\r/ms', "\n", $str);
+                echo gmdate('Y-m-d H:i:s'),
+                "\t",
+                    //Trim trailing space
+                trim(
+                //Indent for readability, except for trailing break
+                    str_replace(
+                        "\n",
+                        "\n                   \t                  ",
+                        trim($str)
+                    )
+                ),
+                "\n";
+        }
+    }
+
+    /**
+     * Connect to an SMTP server.
+     *
+     * @param string $host    SMTP server IP or host name
+     * @param int    $port    The port number to connect to
+     * @param int    $timeout How long to wait for the connection to open
+     * @param array  $options An array of options for stream_context_create()
+     *
+     * @return bool
+     */
+    public function connect($host, $port = null, $timeout = 30, $options = [])
+    {
+        static $streamok;
+        //This is enabled by default since 5.0.0 but some providers disable it
+        //Check this once and cache the result
+        if (null === $streamok) {
+            $streamok = function_exists('stream_socket_client');
+        }
+        // Clear errors to avoid confusion
+        $this->setError('');
+        // Make sure we are __not__ connected
+        if ($this->connected()) {
+            // Already connected, generate error
+            $this->setError('Already connected to a server');
+
+            return false;
+        }
+        if (empty($port)) {
+            $port = self::DEFAULT_PORT;
+        }
+        // Connect to the SMTP server
+        $this->edebug(
+            "Connection: opening to $host:$port, timeout=$timeout, options=" .
+            (count($options) > 0 ? var_export($options, true) : 'array()'),
+            self::DEBUG_CONNECTION
+        );
+        $errno = 0;
+        $errstr = '';
+        if ($streamok) {
+            $socket_context = stream_context_create($options);
+            set_error_handler([$this, 'errorHandler']);
+            $this->smtp_conn = stream_socket_client(
+                $host . ':' . $port,
+                $errno,
+                $errstr,
+                $timeout,
+                STREAM_CLIENT_CONNECT,
+                $socket_context
+            );
+            restore_error_handler();
+        } else {
+            //Fall back to fsockopen which should work in more places, but is missing some features
+            $this->edebug(
+                'Connection: stream_socket_client not available, falling back to fsockopen',
+                self::DEBUG_CONNECTION
+            );
+            set_error_handler([$this, 'errorHandler']);
+            $this->smtp_conn = fsockopen(
+                $host,
+                $port,
+                $errno,
+                $errstr,
+                $timeout
+            );
+            restore_error_handler();
+        }
+        // Verify we connected properly
+        if (!is_resource($this->smtp_conn)) {
+            $this->setError(
+                'Failed to connect to server',
+                '',
+                (string) $errno,
+                (string) $errstr
+            );
+            $this->edebug(
+                'SMTP ERROR: ' . $this->error['error']
+                . ": $errstr ($errno)",
+                self::DEBUG_CLIENT
+            );
+
+            return false;
+        }
+        $this->edebug('Connection: opened', self::DEBUG_CONNECTION);
+        // SMTP server can take longer to respond, give longer timeout for first read
+        // Windows does not have support for this timeout function
+        if (substr(PHP_OS, 0, 3) != 'WIN') {
+            $max = ini_get('max_execution_time');
+            // Don't bother if unlimited
+            if (0 != $max and $timeout > $max) {
+                @set_time_limit($timeout);
+            }
+            stream_set_timeout($this->smtp_conn, $timeout, 0);
+        }
+        // Get any announcement
+        $announce = $this->get_lines();
+        $this->edebug('SERVER -> CLIENT: ' . $announce, self::DEBUG_SERVER);
+
+        return true;
+    }
+
+    /**
+     * Initiate a TLS (encrypted) session.
+     *
+     * @return bool
+     */
+    public function startTLS()
+    {
+        if (!$this->sendCommand('STARTTLS', 'STARTTLS', 220)) {
+            return false;
+        }
+
+        //Allow the best TLS version(s) we can
+        $crypto_method = STREAM_CRYPTO_METHOD_TLS_CLIENT;
+
+        //PHP 5.6.7 dropped inclusion of TLS 1.1 and 1.2 in STREAM_CRYPTO_METHOD_TLS_CLIENT
+        //so add them back in manually if we can
+        if (defined('STREAM_CRYPTO_METHOD_TLSv1_2_CLIENT')) {
+            $crypto_method |= STREAM_CRYPTO_METHOD_TLSv1_2_CLIENT;
+            $crypto_method |= STREAM_CRYPTO_METHOD_TLSv1_1_CLIENT;
+        }
+
+        // Begin encrypted connection
+        set_error_handler([$this, 'errorHandler']);
+        $crypto_ok = stream_socket_enable_crypto(
+            $this->smtp_conn,
+            true,
+            $crypto_method
+        );
+        restore_error_handler();
+
+        return (bool) $crypto_ok;
+    }
+
+    /**
+     * Perform SMTP authentication.
+     * Must be run after hello().
+     *
+     * @see    hello()
+     *
+     * @param string $username The user name
+     * @param string $password The password
+     * @param string $authtype The auth type (CRAM-MD5, PLAIN, LOGIN, XOAUTH2)
+     * @param OAuth  $OAuth    An optional OAuth instance for XOAUTH2 authentication
+     *
+     * @return bool True if successfully authenticated
+     */
+    public function authenticate(
+        $username,
+        $password,
+        $authtype = null,
+        $OAuth = null
+    ) {
+        if (!$this->server_caps) {
+            $this->setError('Authentication is not allowed before HELO/EHLO');
+
+            return false;
+        }
+
+        if (array_key_exists('EHLO', $this->server_caps)) {
+            // SMTP extensions are available; try to find a proper authentication method
+            if (!array_key_exists('AUTH', $this->server_caps)) {
+                $this->setError('Authentication is not allowed at this stage');
+                // 'at this stage' means that auth may be allowed after the stage changes
+                // e.g. after STARTTLS
+
+                return false;
+            }
+
+            $this->edebug('Auth method requested: ' . ($authtype ? $authtype : 'UNSPECIFIED'), self::DEBUG_LOWLEVEL);
+            $this->edebug(
+                'Auth methods available on the server: ' . implode(',', $this->server_caps['AUTH']),
+                self::DEBUG_LOWLEVEL
+            );
+
+            //If we have requested a specific auth type, check the server supports it before trying others
+            if (null !== $authtype and !in_array($authtype, $this->server_caps['AUTH'])) {
+                $this->edebug('Requested auth method not available: ' . $authtype, self::DEBUG_LOWLEVEL);
+                $authtype = null;
+            }
+
+            if (empty($authtype)) {
+                //If no auth mechanism is specified, attempt to use these, in this order
+                //Try CRAM-MD5 first as it's more secure than the others
+                foreach (['CRAM-MD5', 'LOGIN', 'PLAIN', 'XOAUTH2'] as $method) {
+                    if (in_array($method, $this->server_caps['AUTH'])) {
+                        $authtype = $method;
+                        break;
+                    }
+                }
+                if (empty($authtype)) {
+                    $this->setError('No supported authentication methods found');
+
+                    return false;
+                }
+                self::edebug('Auth method selected: ' . $authtype, self::DEBUG_LOWLEVEL);
+            }
+
+            if (!in_array($authtype, $this->server_caps['AUTH'])) {
+                $this->setError("The requested authentication method \"$authtype\" is not supported by the server");
+
+                return false;
+            }
+        } elseif (empty($authtype)) {
+            $authtype = 'LOGIN';
+        }
+        switch ($authtype) {
+            case 'PLAIN':
+                // Start authentication
+                if (!$this->sendCommand('AUTH', 'AUTH PLAIN', 334)) {
+                    return false;
+                }
+                // Send encoded username and password
+                if (!$this->sendCommand(
+                    'User & Password',
+                    base64_encode("\0" . $username . "\0" . $password),
+                    235
+                )
+                ) {
+                    return false;
+                }
+                break;
+            case 'LOGIN':
+                // Start authentication
+                if (!$this->sendCommand('AUTH', 'AUTH LOGIN', 334)) {
+                    return false;
+                }
+                if (!$this->sendCommand('Username', base64_encode($username), 334)) {
+                    return false;
+                }
+                if (!$this->sendCommand('Password', base64_encode($password), 235)) {
+                    return false;
+                }
+                break;
+            case 'CRAM-MD5':
+                // Start authentication
+                if (!$this->sendCommand('AUTH CRAM-MD5', 'AUTH CRAM-MD5', 334)) {
+                    return false;
+                }
+                // Get the challenge
+                $challenge = base64_decode(substr($this->last_reply, 4));
+
+                // Build the response
+                $response = $username . ' ' . $this->hmac($challenge, $password);
+
+                // send encoded credentials
+                return $this->sendCommand('Username', base64_encode($response), 235);
+            case 'XOAUTH2':
+                //The OAuth instance must be set up prior to requesting auth.
+                if (null === $OAuth) {
+                    return false;
+                }
+                $oauth = $OAuth->getOauth64();
+
+                // Start authentication
+                if (!$this->sendCommand('AUTH', 'AUTH XOAUTH2 ' . $oauth, 235)) {
+                    return false;
+                }
+                break;
+            default:
+                $this->setError("Authentication method \"$authtype\" is not supported");
+
+                return false;
+        }
+
+        return true;
+    }
+
+    /**
+     * Calculate an MD5 HMAC hash.
+     * Works like hash_hmac('md5', $data, $key)
+     * in case that function is not available.
+     *
+     * @param string $data The data to hash
+     * @param string $key  The key to hash with
+     *
+     * @return string
+     */
+    protected function hmac($data, $key)
+    {
+        if (function_exists('hash_hmac')) {
+            return hash_hmac('md5', $data, $key);
+        }
+
+        // The following borrowed from
+        // http://php.net/manual/en/function.mhash.php#27225
+
+        // RFC 2104 HMAC implementation for php.
+        // Creates an md5 HMAC.
+        // Eliminates the need to install mhash to compute a HMAC
+        // by Lance Rushing
+
+        $bytelen = 64; // byte length for md5
+        if (strlen($key) > $bytelen) {
+            $key = pack('H*', md5($key));
+        }
+        $key = str_pad($key, $bytelen, chr(0x00));
+        $ipad = str_pad('', $bytelen, chr(0x36));
+        $opad = str_pad('', $bytelen, chr(0x5c));
+        $k_ipad = $key ^ $ipad;
+        $k_opad = $key ^ $opad;
+
+        return md5($k_opad . pack('H*', md5($k_ipad . $data)));
+    }
+
+    /**
+     * Check connection state.
+     *
+     * @return bool True if connected
+     */
+    public function connected()
+    {
+        if (is_resource($this->smtp_conn)) {
+            $sock_status = stream_get_meta_data($this->smtp_conn);
+            if ($sock_status['eof']) {
+                // The socket is valid but we are not connected
+                $this->edebug(
+                    'SMTP NOTICE: EOF caught while checking if connected',
+                    self::DEBUG_CLIENT
+                );
+                $this->close();
+
+                return false;
+            }
+
+            return true; // everything looks good
+        }
+
+        return false;
+    }
+
+    /**
+     * Close the socket and clean up the state of the class.
+     * Don't use this function without first trying to use QUIT.
+     *
+     * @see quit()
+     */
+    public function close()
+    {
+        $this->setError('');
+        $this->server_caps = null;
+        $this->helo_rply = null;
+        if (is_resource($this->smtp_conn)) {
+            // close the connection and cleanup
+            fclose($this->smtp_conn);
+            $this->smtp_conn = null; //Makes for cleaner serialization
+            $this->edebug('Connection: closed', self::DEBUG_CONNECTION);
+        }
+    }
+
+    /**
+     * Send an SMTP DATA command.
+     * Issues a data command and sends the msg_data to the server,
+     * finializing the mail transaction. $msg_data is the message
+     * that is to be send with the headers. Each header needs to be
+     * on a single line followed by a <CRLF> with the message headers
+     * and the message body being separated by an additional <CRLF>.
+     * Implements RFC 821: DATA <CRLF>.
+     *
+     * @param string $msg_data Message data to send
+     *
+     * @return bool
+     */
+    public function data($msg_data)
+    {
+        //This will use the standard timelimit
+        if (!$this->sendCommand('DATA', 'DATA', 354)) {
+            return false;
+        }
+
+        /* The server is ready to accept data!
+         * According to rfc821 we should not send more than 1000 characters on a single line (including the LE)
+         * so we will break the data up into lines by \r and/or \n then if needed we will break each of those into
+         * smaller lines to fit within the limit.
+         * We will also look for lines that start with a '.' and prepend an additional '.'.
+         * NOTE: this does not count towards line-length limit.
+         */
+
+        // Normalize line breaks before exploding
+        $lines = explode("\n", str_replace(["\r\n", "\r"], "\n", $msg_data));
+
+        /* To distinguish between a complete RFC822 message and a plain message body, we check if the first field
+         * of the first line (':' separated) does not contain a space then it _should_ be a header and we will
+         * process all lines before a blank line as headers.
+         */
+
+        $field = substr($lines[0], 0, strpos($lines[0], ':'));
+        $in_headers = false;
+        if (!empty($field) and strpos($field, ' ') === false) {
+            $in_headers = true;
+        }
+
+        foreach ($lines as $line) {
+            $lines_out = [];
+            if ($in_headers and $line == '') {
+                $in_headers = false;
+            }
+            //Break this line up into several smaller lines if it's too long
+            //Micro-optimisation: isset($str[$len]) is faster than (strlen($str) > $len),
+            while (isset($line[self::MAX_LINE_LENGTH])) {
+                //Working backwards, try to find a space within the last MAX_LINE_LENGTH chars of the line to break on
+                //so as to avoid breaking in the middle of a word
+                $pos = strrpos(substr($line, 0, self::MAX_LINE_LENGTH), ' ');
+                //Deliberately matches both false and 0
+                if (!$pos) {
+                    //No nice break found, add a hard break
+                    $pos = self::MAX_LINE_LENGTH - 1;
+                    $lines_out[] = substr($line, 0, $pos);
+                    $line = substr($line, $pos);
+                } else {
+                    //Break at the found point
+                    $lines_out[] = substr($line, 0, $pos);
+                    //Move along by the amount we dealt with
+                    $line = substr($line, $pos + 1);
+                }
+                //If processing headers add a LWSP-char to the front of new line RFC822 section 3.1.1
+                if ($in_headers) {
+                    $line = "\t" . $line;
+                }
+            }
+            $lines_out[] = $line;
+
+            //Send the lines to the server
+            foreach ($lines_out as $line_out) {
+                //RFC2821 section 4.5.2
+                if (!empty($line_out) and $line_out[0] == '.') {
+                    $line_out = '.' . $line_out;
+                }
+                $this->client_send($line_out . static::LE, 'DATA');
+            }
+        }
+
+        //Message data has been sent, complete the command
+        //Increase timelimit for end of DATA command
+        $savetimelimit = $this->Timelimit;
+        $this->Timelimit = $this->Timelimit * 2;
+        $result = $this->sendCommand('DATA END', '.', 250);
+        $this->recordLastTransactionID();
+        //Restore timelimit
+        $this->Timelimit = $savetimelimit;
+
+        return $result;
+    }
+
+    /**
+     * Send an SMTP HELO or EHLO command.
+     * Used to identify the sending server to the receiving server.
+     * This makes sure that client and server are in a known state.
+     * Implements RFC 821: HELO <SP> <domain> <CRLF>
+     * and RFC 2821 EHLO.
+     *
+     * @param string $host The host name or IP to connect to
+     *
+     * @return bool
+     */
+    public function hello($host = '')
+    {
+        //Try extended hello first (RFC 2821)
+        return (bool) ($this->sendHello('EHLO', $host) or $this->sendHello('HELO', $host));
+    }
+
+    /**
+     * Send an SMTP HELO or EHLO command.
+     * Low-level implementation used by hello().
+     *
+     * @param string $hello The HELO string
+     * @param string $host  The hostname to say we are
+     *
+     * @return bool
+     *
+     * @see    hello()
+     */
+    protected function sendHello($hello, $host)
+    {
+        $noerror = $this->sendCommand($hello, $hello . ' ' . $host, 250);
+        $this->helo_rply = $this->last_reply;
+        if ($noerror) {
+            $this->parseHelloFields($hello);
+        } else {
+            $this->server_caps = null;
+        }
+
+        return $noerror;
+    }
+
+    /**
+     * Parse a reply to HELO/EHLO command to discover server extensions.
+     * In case of HELO, the only parameter that can be discovered is a server name.
+     *
+     * @param string $type `HELO` or `EHLO`
+     */
+    protected function parseHelloFields($type)
+    {
+        $this->server_caps = [];
+        $lines = explode("\n", $this->helo_rply);
+
+        foreach ($lines as $n => $s) {
+            //First 4 chars contain response code followed by - or space
+            $s = trim(substr($s, 4));
+            if (empty($s)) {
+                continue;
+            }
+            $fields = explode(' ', $s);
+            if (!empty($fields)) {
+                if (!$n) {
+                    $name = $type;
+                    $fields = $fields[0];
+                } else {
+                    $name = array_shift($fields);
+                    switch ($name) {
+                        case 'SIZE':
+                            $fields = ($fields ? $fields[0] : 0);
+                            break;
+                        case 'AUTH':
+                            if (!is_array($fields)) {
+                                $fields = [];
+                            }
+                            break;
+                        default:
+                            $fields = true;
+                    }
+                }
+                $this->server_caps[$name] = $fields;
+            }
+        }
+    }
+
+    /**
+     * Send an SMTP MAIL command.
+     * Starts a mail transaction from the email address specified in
+     * $from. Returns true if successful or false otherwise. If True
+     * the mail transaction is started and then one or more recipient
+     * commands may be called followed by a data command.
+     * Implements RFC 821: MAIL <SP> FROM:<reverse-path> <CRLF>.
+     *
+     * @param string $from Source address of this message
+     *
+     * @return bool
+     */
+    public function mail($from)
+    {
+        $useVerp = ($this->do_verp ? ' XVERP' : '');
+
+        return $this->sendCommand(
+            'MAIL FROM',
+            'MAIL FROM:<' . $from . '>' . $useVerp,
+            250
+        );
+    }
+
+    /**
+     * Send an SMTP QUIT command.
+     * Closes the socket if there is no error or the $close_on_error argument is true.
+     * Implements from RFC 821: QUIT <CRLF>.
+     *
+     * @param bool $close_on_error Should the connection close if an error occurs?
+     *
+     * @return bool
+     */
+    public function quit($close_on_error = true)
+    {
+        $noerror = $this->sendCommand('QUIT', 'QUIT', 221);
+        $err = $this->error; //Save any error
+        if ($noerror or $close_on_error) {
+            $this->close();
+            $this->error = $err; //Restore any error from the quit command
+        }
+
+        return $noerror;
+    }
+
+    /**
+     * Send an SMTP RCPT command.
+     * Sets the TO argument to $toaddr.
+     * Returns true if the recipient was accepted false if it was rejected.
+     * Implements from RFC 821: RCPT <SP> TO:<forward-path> <CRLF>.
+     *
+     * @param string $address The address the message is being sent to
+     *
+     * @return bool
+     */
+    public function recipient($address)
+    {
+        return $this->sendCommand(
+            'RCPT TO',
+            'RCPT TO:<' . $address . '>',
+            [250, 251]
+        );
+    }
+
+    /**
+     * Send an SMTP RSET command.
+     * Abort any transaction that is currently in progress.
+     * Implements RFC 821: RSET <CRLF>.
+     *
+     * @return bool True on success
+     */
+    public function reset()
+    {
+        return $this->sendCommand('RSET', 'RSET', 250);
+    }
+
+    /**
+     * Send a command to an SMTP server and check its return code.
+     *
+     * @param string    $command       The command name - not sent to the server
+     * @param string    $commandstring The actual command to send
+     * @param int|array $expect        One or more expected integer success codes
+     *
+     * @return bool True on success
+     */
+    protected function sendCommand($command, $commandstring, $expect)
+    {
+        if (!$this->connected()) {
+            $this->setError("Called $command without being connected");
+
+            return false;
+        }
+        //Reject line breaks in all commands
+        if (strpos($commandstring, "\n") !== false or strpos($commandstring, "\r") !== false) {
+            $this->setError("Command '$command' contained line breaks");
+
+            return false;
+        }
+        $this->client_send($commandstring . static::LE, $command);
+
+        $this->last_reply = $this->get_lines();
+        // Fetch SMTP code and possible error code explanation
+        $matches = [];
+        if (preg_match('/^([0-9]{3})[ -](?:([0-9]\\.[0-9]\\.[0-9]) )?/', $this->last_reply, $matches)) {
+            $code = $matches[1];
+            $code_ex = (count($matches) > 2 ? $matches[2] : null);
+            // Cut off error code from each response line
+            $detail = preg_replace(
+                "/{$code}[ -]" .
+                ($code_ex ? str_replace('.', '\\.', $code_ex) . ' ' : '') . '/m',
+                '',
+                $this->last_reply
+            );
+        } else {
+            // Fall back to simple parsing if regex fails
+            $code = substr($this->last_reply, 0, 3);
+            $code_ex = null;
+            $detail = substr($this->last_reply, 4);
+        }
+
+        $this->edebug('SERVER -> CLIENT: ' . $this->last_reply, self::DEBUG_SERVER);
+
+        if (!in_array($code, (array) $expect)) {
+            $this->setError(
+                "$command command failed",
+                $detail,
+                $code,
+                $code_ex
+            );
+            $this->edebug(
+                'SMTP ERROR: ' . $this->error['error'] . ': ' . $this->last_reply,
+                self::DEBUG_CLIENT
+            );
+
+            return false;
+        }
+
+        $this->setError('');
+
+        return true;
+    }
+
+    /**
+     * Send an SMTP SAML command.
+     * Starts a mail transaction from the email address specified in $from.
+     * Returns true if successful or false otherwise. If True
+     * the mail transaction is started and then one or more recipient
+     * commands may be called followed by a data command. This command
+     * will send the message to the users terminal if they are logged
+     * in and send them an email.
+     * Implements RFC 821: SAML <SP> FROM:<reverse-path> <CRLF>.
+     *
+     * @param string $from The address the message is from
+     *
+     * @return bool
+     */
+    public function sendAndMail($from)
+    {
+        return $this->sendCommand('SAML', "SAML FROM:$from", 250);
+    }
+
+    /**
+     * Send an SMTP VRFY command.
+     *
+     * @param string $name The name to verify
+     *
+     * @return bool
+     */
+    public function verify($name)
+    {
+        return $this->sendCommand('VRFY', "VRFY $name", [250, 251]);
+    }
+
+    /**
+     * Send an SMTP NOOP command.
+     * Used to keep keep-alives alive, doesn't actually do anything.
+     *
+     * @return bool
+     */
+    public function noop()
+    {
+        return $this->sendCommand('NOOP', 'NOOP', 250);
+    }
+
+    /**
+     * Send an SMTP TURN command.
+     * This is an optional command for SMTP that this class does not support.
+     * This method is here to make the RFC821 Definition complete for this class
+     * and _may_ be implemented in future.
+     * Implements from RFC 821: TURN <CRLF>.
+     *
+     * @return bool
+     */
+    public function turn()
+    {
+        $this->setError('The SMTP TURN command is not implemented');
+        $this->edebug('SMTP NOTICE: ' . $this->error['error'], self::DEBUG_CLIENT);
+
+        return false;
+    }
+
+    /**
+     * Send raw data to the server.
+     *
+     * @param string $data    The data to send
+     * @param string $command Optionally, the command this is part of, used only for controlling debug output
+     *
+     * @return int|bool The number of bytes sent to the server or false on error
+     */
+    public function client_send($data, $command = '')
+    {
+        //If SMTP transcripts are left enabled, or debug output is posted online
+        //it can leak credentials, so hide credentials in all but lowest level
+        if (self::DEBUG_LOWLEVEL > $this->do_debug and
+            in_array($command, ['User & Password', 'Username', 'Password'], true)) {
+            $this->edebug('CLIENT -> SERVER: <credentials hidden>', self::DEBUG_CLIENT);
+        } else {
+            $this->edebug('CLIENT -> SERVER: ' . $data, self::DEBUG_CLIENT);
+        }
+        set_error_handler([$this, 'errorHandler']);
+        $result = fwrite($this->smtp_conn, $data);
+        restore_error_handler();
+
+        return $result;
+    }
+
+    /**
+     * Get the latest error.
+     *
+     * @return array
+     */
+    public function getError()
+    {
+        return $this->error;
+    }
+
+    /**
+     * Get SMTP extensions available on the server.
+     *
+     * @return array|null
+     */
+    public function getServerExtList()
+    {
+        return $this->server_caps;
+    }
+
+    /**
+     * Get metadata about the SMTP server from its HELO/EHLO response.
+     * The method works in three ways, dependent on argument value and current state:
+     *   1. HELO/EHLO has not been sent - returns null and populates $this->error.
+     *   2. HELO has been sent -
+     *     $name == 'HELO': returns server name
+     *     $name == 'EHLO': returns boolean false
+     *     $name == any other string: returns null and populates $this->error
+     *   3. EHLO has been sent -
+     *     $name == 'HELO'|'EHLO': returns the server name
+     *     $name == any other string: if extension $name exists, returns True
+     *       or its options (e.g. AUTH mechanisms supported). Otherwise returns False.
+     *
+     * @param string $name Name of SMTP extension or 'HELO'|'EHLO'
+     *
+     * @return mixed
+     */
+    public function getServerExt($name)
+    {
+        if (!$this->server_caps) {
+            $this->setError('No HELO/EHLO was sent');
+
+            return;
+        }
+
+        if (!array_key_exists($name, $this->server_caps)) {
+            if ('HELO' == $name) {
+                return $this->server_caps['EHLO'];
+            }
+            if ('EHLO' == $name || array_key_exists('EHLO', $this->server_caps)) {
+                return false;
+            }
+            $this->setError('HELO handshake was used; No information about server extensions available');
+
+            return;
+        }
+
+        return $this->server_caps[$name];
+    }
+
+    /**
+     * Get the last reply from the server.
+     *
+     * @return string
+     */
+    public function getLastReply()
+    {
+        return $this->last_reply;
+    }
+
+    /**
+     * Read the SMTP server's response.
+     * Either before eof or socket timeout occurs on the operation.
+     * With SMTP we can tell if we have more lines to read if the
+     * 4th character is '-' symbol. If it is a space then we don't
+     * need to read anything else.
+     *
+     * @return string
+     */
+    protected function get_lines()
+    {
+        // If the connection is bad, give up straight away
+        if (!is_resource($this->smtp_conn)) {
+            return '';
+        }
+        $data = '';
+        $endtime = 0;
+        stream_set_timeout($this->smtp_conn, $this->Timeout);
+        if ($this->Timelimit > 0) {
+            $endtime = time() + $this->Timelimit;
+        }
+        $selR = [$this->smtp_conn];
+        $selW = null;
+        while (is_resource($this->smtp_conn) and !feof($this->smtp_conn)) {
+            //Must pass vars in here as params are by reference
+            if (!stream_select($selR, $selW, $selW, $this->Timelimit)) {
+                $this->edebug(
+                    'SMTP -> get_lines(): timed-out (' . $this->Timeout . ' sec)',
+                    self::DEBUG_LOWLEVEL
+                );
+                break;
+            }
+            //Deliberate noise suppression - errors are handled afterwards
+            $str = @fgets($this->smtp_conn, 515);
+            $this->edebug('SMTP INBOUND: "' . trim($str) . '"', self::DEBUG_LOWLEVEL);
+            $data .= $str;
+            // If response is only 3 chars (not valid, but RFC5321 S4.2 says it must be handled),
+            // or 4th character is a space, we are done reading, break the loop,
+            // string array access is a micro-optimisation over strlen
+            if (!isset($str[3]) or (isset($str[3]) and $str[3] == ' ')) {
+                break;
+            }
+            // Timed-out? Log and break
+            $info = stream_get_meta_data($this->smtp_conn);
+            if ($info['timed_out']) {
+                $this->edebug(
+                    'SMTP -> get_lines(): timed-out (' . $this->Timeout . ' sec)',
+                    self::DEBUG_LOWLEVEL
+                );
+                break;
+            }
+            // Now check if reads took too long
+            if ($endtime and time() > $endtime) {
+                $this->edebug(
+                    'SMTP -> get_lines(): timelimit reached (' .
+                    $this->Timelimit . ' sec)',
+                    self::DEBUG_LOWLEVEL
+                );
+                break;
+            }
+        }
+
+        return $data;
+    }
+
+    /**
+     * Enable or disable VERP address generation.
+     *
+     * @param bool $enabled
+     */
+    public function setVerp($enabled = false)
+    {
+        $this->do_verp = $enabled;
+    }
+
+    /**
+     * Get VERP address generation mode.
+     *
+     * @return bool
+     */
+    public function getVerp()
+    {
+        return $this->do_verp;
+    }
+
+    /**
+     * Set error messages and codes.
+     *
+     * @param string $message      The error message
+     * @param string $detail       Further detail on the error
+     * @param string $smtp_code    An associated SMTP error code
+     * @param string $smtp_code_ex Extended SMTP code
+     */
+    protected function setError($message, $detail = '', $smtp_code = '', $smtp_code_ex = '')
+    {
+        $this->error = [
+            'error' => $message,
+            'detail' => $detail,
+            'smtp_code' => $smtp_code,
+            'smtp_code_ex' => $smtp_code_ex,
+        ];
+    }
+
+    /**
+     * Set debug output method.
+     *
+     * @param string|callable $method The name of the mechanism to use for debugging output, or a callable to handle it
+     */
+    public function setDebugOutput($method = 'echo')
+    {
+        $this->Debugoutput = $method;
+    }
+
+    /**
+     * Get debug output method.
+     *
+     * @return string
+     */
+    public function getDebugOutput()
+    {
+        return $this->Debugoutput;
+    }
+
+    /**
+     * Set debug output level.
+     *
+     * @param int $level
+     */
+    public function setDebugLevel($level = 0)
+    {
+        $this->do_debug = $level;
+    }
+
+    /**
+     * Get debug output level.
+     *
+     * @return int
+     */
+    public function getDebugLevel()
+    {
+        return $this->do_debug;
+    }
+
+    /**
+     * Set SMTP timeout.
+     *
+     * @param int $timeout The timeout duration in seconds
+     */
+    public function setTimeout($timeout = 0)
+    {
+        $this->Timeout = $timeout;
+    }
+
+    /**
+     * Get SMTP timeout.
+     *
+     * @return int
+     */
+    public function getTimeout()
+    {
+        return $this->Timeout;
+    }
+
+    /**
+     * Reports an error number and string.
+     *
+     * @param int    $errno   The error number returned by PHP
+     * @param string $errmsg  The error message returned by PHP
+     * @param string $errfile The file the error occurred in
+     * @param int    $errline The line number the error occurred on
+     */
+    protected function errorHandler($errno, $errmsg, $errfile = '', $errline = 0)
+    {
+        $notice = 'Connection failed.';
+        $this->setError(
+            $notice,
+            $errmsg,
+            (string) $errno
+        );
+        $this->edebug(
+            "$notice Error #$errno: $errmsg [$errfile line $errline]",
+            self::DEBUG_CONNECTION
+        );
+    }
+
+    /**
+     * Extract and return the ID of the last SMTP transaction based on
+     * a list of patterns provided in SMTP::$smtp_transaction_id_patterns.
+     * Relies on the host providing the ID in response to a DATA command.
+     * If no reply has been received yet, it will return null.
+     * If no pattern was matched, it will return false.
+     *
+     * @return bool|null|string
+     */
+    protected function recordLastTransactionID()
+    {
+        $reply = $this->getLastReply();
+
+        if (empty($reply)) {
+            $this->last_smtp_transaction_id = null;
+        } else {
+            $this->last_smtp_transaction_id = false;
+            foreach ($this->smtp_transaction_id_patterns as $smtp_transaction_id_pattern) {
+                if (preg_match($smtp_transaction_id_pattern, $reply, $matches)) {
+                    $this->last_smtp_transaction_id = trim($matches[1]);
+                    break;
+                }
+            }
+        }
+
+        return $this->last_smtp_transaction_id;
+    }
+
+    /**
+     * Get the queue/transaction ID of the last SMTP transaction
+     * If no reply has been received yet, it will return null.
+     * If no pattern was matched, it will return false.
+     *
+     * @return bool|null|string
+     *
+     * @see recordLastTransactionID()
+     */
+    public function getLastTransactionID()
+    {
+        return $this->last_smtp_transaction_id;
+    }
+}
diff --git a/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/theme/approved.html b/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/theme/approved.html
new file mode 100644
index 0000000..3c5595e
--- /dev/null
+++ b/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/theme/approved.html
@@ -0,0 +1,18 @@
+<table style="width:99.8%;height:99.8%">
+    <tbody>
+    <tr>
+        <td style="background:#fafafa url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAICAYAAADED76LAAAAy0lEQVQY0x2PsQtAYBDFP1keKZfBKIqNycCERUkMKLuSgZnRarIpJX8s3zfcDe9+794du+8bRVHQOI4wDAOmaULTNDDGYFkWMVVVQUTQdZ3iOMZxHCjLElVV0TRNYHVdC7ptW6RpSn3f4wdJkiTs+w6WJAl4DcOAbdugKAq974umaRAEARgXn+cRW3zfFxuiKCJZloXGHMeBbdv4Beq6Duu6Issy7iYB8Jbnucg8zxPLsggnj/zvIxaGIXmeB9d1wSE+nOeZf4HruvABUtou5ypjMF4AAAAASUVORK5CYII=)">
+            <div style="border-radius:10px;font-size:13px;color:#555;width:666px;font-family:'Century Gothic','Trebuchet MS','Hiragino Sans GB','微软雅黑','Microsoft Yahei',Tahoma,Helvetica,Arial,SimSun,sans-serif;margin:50px auto;border:1px solid #eee;max-width:100%;background:#fff repeating-linear-gradient(-45deg,#fff,#fff 1.125rem,transparent 1.125rem,transparent 2.25rem);box-shadow:0 1px 5px rgba(0,0,0,.15)">
+                <div style="width:100%;background:#49BDAD;color:#fff;border-radius:10px 10px 0 0;background-image:-moz-linear-gradient(0deg,#43c6b8,#ffd1f4);background-image:-webkit-linear-gradient(0deg,#43c6b8,#ffd1f4);height:66px"><p style="font-size:15px;word-break:break-all;padding:23px 32px;margin:0;background-color:hsla(0,0%,100%,.4);border-radius:10px 10px 0 0">您在 [<a href="{blogUrl}" style="text-decoration:none;color:#fff" target="_blank">{blogName}</a>] 的评论已通过审核！</p></div>
+                <div style="margin:40px auto;width:90%">
+                    <p>{author}，您曾在文章《<a href="{permalink}" style="text-decoration:none;color:#12addb" target="_blank">{title}</a>》上发表评论:</p>
+                    <p style="background:#fafafa repeating-linear-gradient(-45deg,#fff,#fff 1.125rem,transparent 1.125rem,transparent 2.25rem);box-shadow:0 2px 5px rgba(0,0,0,.15);margin:20px 0;padding:15px;border-radius:5px;font-size:14px;color:#555">{text}</p>
+                    <p>目前您的评论已通过审核！</p>
+                    <p>请注意：此邮件由 <a href="{blogUrl}" style="color:#12addb" target="_blank">{blogName}</a> 自动发送，请勿直接回复。</p>
+                    <p>若此邮件不是您请求的，请忽略并删除！</p>
+                </div>
+            </div>
+        </td>
+    </tr>
+    </tbody>
+</table>
\ No newline at end of file
diff --git a/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/theme/author.html b/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/theme/author.html
new file mode 100644
index 0000000..e7eb076
--- /dev/null
+++ b/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/theme/author.html
@@ -0,0 +1,17 @@
+<table style="width:99.8%;height:99.8%">
+    <tbody>
+    <tr>
+        <td style="background:#fafafa url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAICAYAAADED76LAAAAy0lEQVQY0x2PsQtAYBDFP1keKZfBKIqNycCERUkMKLuSgZnRarIpJX8s3zfcDe9+794du+8bRVHQOI4wDAOmaULTNDDGYFkWMVVVQUTQdZ3iOMZxHCjLElVV0TRNYHVdC7ptW6RpSn3f4wdJkiTs+w6WJAl4DcOAbdugKAq974umaRAEARgXn+cRW3zfFxuiKCJZloXGHMeBbdv4Beq6Duu6Issy7iYB8Jbnucg8zxPLsggnj/zvIxaGIXmeB9d1wSE+nOeZf4HruvABUtou5ypjMF4AAAAASUVORK5CYII=)">
+            <div style="border-radius:10px;font-size:13px;color:#555;width:666px;font-family:'Century Gothic','Trebuchet MS','Hiragino Sans GB','微软雅黑','Microsoft Yahei',Tahoma,Helvetica,Arial,SimSun,sans-serif;margin:50px auto;border:1px solid #eee;max-width:100%;background:#fff repeating-linear-gradient(-45deg,#fff,#fff 1.125rem,transparent 1.125rem,transparent 2.25rem);box-shadow:0 1px 5px rgba(0,0,0,.15)">
+                <div style="width:100%;background:#49BDAD;color:#fff;border-radius:10px 10px 0 0;background-image:-moz-linear-gradient(0deg,#43c6b8,#ffd1f4);background-image:-webkit-linear-gradient(0deg,#43c6b8,#ffd1f4);height:66px"><p style="font-size:15px;word-break:break-all;padding:23px 32px;margin:0;background-color:hsla(0,0%,100%,.4);border-radius:10px 10px 0 0">您在 [<a href="{blogUrl}" style="text-decoration:none;color:#fff" target="_blank">{blogName}</a>] 发表的文章有新评论！</p></div>
+                <div style="margin:40px auto;width:90%">
+                    <p>{author} 在您的《<a href="{permalink}" style="text-decoration:none;color:#12addb" target="_blank">{title}</a>》上发表评论:</p>
+                    <p style="background:#fafafa repeating-linear-gradient(-45deg,#fff,#fff 1.125rem,transparent 1.125rem,transparent 2.25rem);box-shadow:0 2px 5px rgba(0,0,0,.15);margin:20px 0;padding:15px;border-radius:5px;font-size:14px;color:#555">{text}</p>
+                    <p>请注意：此邮件由 <a href="{blogUrl}" style="color:#12addb" target="_blank">{blogName}</a> 自动发送，请勿直接回复。</p>
+                    <p>若此邮件不是您请求的，请忽略并删除！</p>
+                </div>
+            </div>
+        </td>
+    </tr>
+    </tbody>
+</table>
\ No newline at end of file
diff --git a/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/theme/forget.html b/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/theme/forget.html
new file mode 100644
index 0000000..d7a9bad
--- /dev/null
+++ b/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/theme/forget.html
@@ -0,0 +1,60 @@
+<div style="background:#ececec;width: 100%;padding: 50px 0;text-align:center;">
+    <div style="background:#fff;width:750px;text-align:left;position:relative;margin:0 auto;font-size:14px;line-height:1.5;">
+        <div style="zoom:1;padding:25px 40px;background:#518bcb; border-bottom:1px solid #467ec3;">
+            <h1 style="color:#fff; font-size:25px;line-height:30px; margin:0;"><a href="{blogurl}"
+                                                                                  style="text-decoration: none;color: #FFF;">您在
+                [{blogname}] 的密码找回申请!</a></h1>
+        </div>
+
+        <div style="padding:35px 40px 30px;">
+            <h2 style="font-size:18px;margin:5px 0;"><span
+                    style="color: rgb(186, 76, 50); font-family:微软雅黑, verdana, arial; line-height: 23.3999996185303px;">{mail}</span>,
+                您好!</h2>
+
+            <p style="color:#313131;line-height:20px;font-size:15px;margin:20px 0;">您在 [{blogname}] 提交了找回密码申请,
+                请核对下方表内信息并点击链接修改密码：</p>
+
+            <table cellspacing="0"
+                   style="font-size:14px;text-align:center;border:1px solid #ccc;table-layout:fixed;width:500px;">
+                <thead>
+                <tr>
+                    <th style="padding:5px 0;text-indent:8px;border:1px solid #eee;border-width:0 1px 1px 0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-weight:normal;color:#a0a0a0;background:#eee;border-color:#dfdfdf;"
+                        width="280px;">邮箱地址
+                    </th>
+                    <th style="padding:5px 0;text-indent:8px;border:1px solid #eee;border-width:0 1px 1px 0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-weight:normal;color:#a0a0a0;background:#eee;border-color:#dfdfdf;"
+                        width="270px;">申请时间
+                    </th>
+                    <th style="padding:5px 0;text-indent:8px;border:1px solid #eee;border-width:0 1px 1px 0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-weight:normal;color:#a0a0a0;background:#eee;border-color:#dfdfdf;"
+                        width="110px;">操作
+                    </th>
+                </tr>
+                </thead>
+                <tbody>
+                <tr>
+                    <td style="padding:5px 0;text-indent:8px;border:1px solid #eee;border-width:0 1px 1px 0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;">
+                        {mail}
+                    </td>
+                    <td style="padding:5px 0;text-indent:8px;border:1px solid #eee;border-width:0 1px 1px 0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;">
+                        {sendtime}
+                    </td>
+                    <td style="padding:5px 0;text-indent:8px;border:1px solid #eee;border-width:0 1px 1px 0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;">
+                        <a href="{resetlink}" style="color:#1E5494;text-decoration:none;vertical-align:middle;"
+                           target="_blank">{resetlink}</a></td>
+                </tr>
+                <tr>
+                    <td colspan="3"
+                        style="padding:5px 0;text-indent:8px;border:1px solid #eee;border-width:0 1px 1px 0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:#FF0000;font-weight:bold">
+                        重置密码链接有效时间为 &quot;{expire}&quot; 分钟, 请在此时间内进行密码重置
+                    </td>
+                </tr>
+                </tbody>
+            </table>
+            &nbsp;
+
+            <div style="font-size:13px;color:#a0a0a0;padding-top:10px">请注意：此邮件由&nbsp;<a href="{blogurl}" target="_blank"
+                                                                                        title="{blogname}">{blogname}</a>&nbsp;自动发送，请勿直接回复。<br/>
+                若此邮件不是您请求的，请忽略并删除！
+            </div>
+        </div>
+    </div>
+</div>
\ No newline at end of file
diff --git a/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/theme/reply.html b/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/theme/reply.html
new file mode 100644
index 0000000..2d6da0f
--- /dev/null
+++ b/server/cn/home/www/IoTgod-www/usr/plugins/LoveKKComment/theme/reply.html
@@ -0,0 +1,20 @@
+<table style="width:99.8%;height:99.8%">
+    <tbody>
+    <tr>
+        <td style="background:#fafafa url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAICAYAAADED76LAAAAy0lEQVQY0x2PsQtAYBDFP1keKZfBKIqNycCERUkMKLuSgZnRarIpJX8s3zfcDe9+794du+8bRVHQOI4wDAOmaULTNDDGYFkWMVVVQUTQdZ3iOMZxHCjLElVV0TRNYHVdC7ptW6RpSn3f4wdJkiTs+w6WJAl4DcOAbdugKAq974umaRAEARgXn+cRW3zfFxuiKCJZloXGHMeBbdv4Beq6Duu6Issy7iYB8Jbnucg8zxPLsggnj/zvIxaGIXmeB9d1wSE+nOeZf4HruvABUtou5ypjMF4AAAAASUVORK5CYII=)">
+            <div style="border-radius:10px;font-size:13px;color:#555;width:666px;font-family:'Century Gothic','Trebuchet MS','Hiragino Sans GB','微软雅黑','Microsoft Yahei',Tahoma,Helvetica,Arial,SimSun,sans-serif;margin:50px auto;border:1px solid #eee;max-width:100%;background:#fff repeating-linear-gradient(-45deg,#fff,#fff 1.125rem,transparent 1.125rem,transparent 2.25rem);box-shadow:0 1px 5px rgba(0,0,0,.15)">
+                <div style="width:100%;background:#49BDAD;color:#fff;border-radius:10px 10px 0 0;background-image:-moz-linear-gradient(0deg,#43c6b8,#ffd1f4);background-image:-webkit-linear-gradient(0deg,#43c6b8,#ffd1f4);height:66px"><p style="font-size:15px;word-break:break-all;padding:23px 32px;margin:0;background-color:hsla(0,0%,100%,.4);border-radius:10px 10px 0 0">您在 [<a href="{blogUrl}" style="text-decoration:none;color:#fff" target="_blank">{blogName}</a>] 的评论有了新的回复！</p></div>
+                <div style="margin:40px auto;width:90%">
+                    <p>{author}，您曾在文章《<a href="{permalink}" style="text-decoration:none;color:#12addb" target="_blank">{title}</a>》上发表评论:</p>
+                    <p style="background:#fafafa repeating-linear-gradient(-45deg,#fff,#fff 1.125rem,transparent 1.125rem,transparent 2.25rem);box-shadow:0 2px 5px rgba(0,0,0,.15);margin:20px 0;padding:15px;border-radius:5px;font-size:14px;color:#555">{text}</p>
+                    <p>{replyAuthor} 给您的回复如下：</p>
+                    <p style="background:#fafafa repeating-linear-gradient(-45deg,#fff,#fff 1.125rem,transparent 1.125rem,transparent 2.25rem);box-shadow:0 2px 5px rgba(0,0,0,.15);margin:20px 0;padding:15px;border-radius:5px;font-size:14px;color:#555">{replyText}</p>
+                    <p>您可以 <a href="{commentUrl}" style="text-decoration:none;color:#12addb" target="_blank">查看回复完整内容</a>，欢迎再次光临 <a href="{blogUrl}" style="text-decoration:none;color:#12addb" target="_blank">{blogName}</a>。</p>
+                    <p>请注意：此邮件由 <a href="{blogUrl}" style="color:#12addb" target="_blank">{blogName}</a> 自动发送，请勿直接回复。</p>
+                    <p>若此邮件不是您请求的，请忽略并删除！</p>
+                </div>
+            </div>
+        </td>
+    </tr>
+    </tbody>
+</table>
\ No newline at end of file
diff --git a/server/cn/home/www/IoTgod-www/usr/themes/handsome/assets/css/features/code/custome.min.css b/server/cn/home/www/IoTgod-www/usr/themes/handsome/assets/css/features/code/custome.min.css
index 389b82c..3cc51b6 100644
--- a/server/cn/home/www/IoTgod-www/usr/themes/handsome/assets/css/features/code/custome.min.css
+++ b/server/cn/home/www/IoTgod-www/usr/themes/handsome/assets/css/features/code/custome.min.css
@@ -1,6 +1 @@
-/**
-   @author: yourself
-   @description: 这里的css代码可以从 https://github.com/isagalaev/highlight.js/tree/master/src/styles 这里面下载。随意选择一个你喜欢的，然后复制在这个文件里。
-   @notice: 记得在后台外观设置——代码高亮样式选择里面选择[自定义]选项，否则这里面的代码是不会生效的
-   @better: 为了减少css文件的大小，你可以先压缩代码再写入该文件
- */
\ No newline at end of file
+.hljs{display:block;overflow-x:auto;padding:.5em}.hljs{color:#00193a}.hljs-keyword,.hljs-selector-tag,.hljs-title,.hljs-section,.hljs-doctag,.hljs-name,.hljs-strong{font-weight:bold}.hljs-comment{color:#738191}.hljs-string,.hljs-title,.hljs-section,.hljs-built_in,.hljs-literal,.hljs-type,.hljs-addition,.hljs-tag,.hljs-quote,.hljs-name,.hljs-selector-id,.hljs-selector-class{color:#0048ab}.hljs-meta,.hljs-subst,.hljs-symbol,.hljs-regexp,.hljs-attribute,.hljs-deletion,.hljs-variable,.hljs-template-variable,.hljs-link,.hljs-bullet{color:#4c81c9}.hljs-emphasis{font-style:italic}
\ No newline at end of file
diff --git a/server/cn/home/www/IoTgod-www/usr/themes/handsome/assets/css/features/code/vs.min.css b/server/cn/home/www/IoTgod-www/usr/themes/handsome/assets/css/features/code/vs.min.css
index 04b25fd..e041d8d 100644
--- a/server/cn/home/www/IoTgod-www/usr/themes/handsome/assets/css/features/code/vs.min.css
+++ b/server/cn/home/www/IoTgod-www/usr/themes/handsome/assets/css/features/code/vs.min.css
@@ -1 +1,42 @@
-function echo(stringA,stringB){var hello="你好";alert("hello world")}.hljs{display:block;overflow-x:auto;padding:.5em;color:black}.hljs-comment,.hljs-quote,.hljs-variable{color:#008000}.hljs-keyword,.hljs-selector-tag,.hljs-built_in,.hljs-name,.hljs-tag{color:#00f}.hljs-string,.hljs-title,.hljs-section,.hljs-attribute,.hljs-literal,.hljs-template-tag,.hljs-template-variable,.hljs-type,.hljs-addition{color:#a31515}.hljs-deletion,.hljs-selector-attr,.hljs-selector-pseudo,.hljs-meta{color:#2b91af}.hljs-doctag{color:#808080}.hljs-attr{color:#f00}.hljs-symbol,.hljs-bullet,.hljs-link{color:#00b0e8}.hljs-emphasis{font-style:italic}.hljs-strong{font-weight:bold}
\ No newline at end of file
+.hljs {
+	display: block;
+	overflow-x: auto;
+	padding: .5em;
+	color: #000
+}
+
+.hljs-comment,.hljs-quote,.hljs-variable {
+	color: green
+}
+
+.hljs-built_in,.hljs-keyword,.hljs-name,.hljs-selector-tag,.hljs-tag {
+	color: #00f
+}
+
+.hljs-addition,.hljs-attribute,.hljs-literal,.hljs-section,.hljs-string,.hljs-template-tag,.hljs-template-variable,.hljs-title,.hljs-type {
+	color: #a31515
+}
+
+.hljs-deletion,.hljs-meta,.hljs-selector-attr,.hljs-selector-pseudo {
+	color: #2b91af
+}
+
+.hljs-doctag {
+	color: grey
+}
+
+.hljs-attr {
+	color: red
+}
+
+.hljs-bullet,.hljs-link,.hljs-symbol {
+	color: #00b0e8
+}
+
+.hljs-emphasis {
+	font-style: italic
+}
+
+.hljs-strong {
+	font-weight: 700
+}
diff --git a/server/cn/home/www/cdn/handsome/assets/css/features/code/custome.min.css b/server/cn/home/www/cdn/handsome/assets/css/features/code/custome.min.css
index 389b82c..3cc51b6 100644
--- a/server/cn/home/www/cdn/handsome/assets/css/features/code/custome.min.css
+++ b/server/cn/home/www/cdn/handsome/assets/css/features/code/custome.min.css
@@ -1,6 +1 @@
-/**
-   @author: yourself
-   @description: 这里的css代码可以从 https://github.com/isagalaev/highlight.js/tree/master/src/styles 这里面下载。随意选择一个你喜欢的，然后复制在这个文件里。
-   @notice: 记得在后台外观设置——代码高亮样式选择里面选择[自定义]选项，否则这里面的代码是不会生效的
-   @better: 为了减少css文件的大小，你可以先压缩代码再写入该文件
- */
\ No newline at end of file
+.hljs{display:block;overflow-x:auto;padding:.5em}.hljs{color:#00193a}.hljs-keyword,.hljs-selector-tag,.hljs-title,.hljs-section,.hljs-doctag,.hljs-name,.hljs-strong{font-weight:bold}.hljs-comment{color:#738191}.hljs-string,.hljs-title,.hljs-section,.hljs-built_in,.hljs-literal,.hljs-type,.hljs-addition,.hljs-tag,.hljs-quote,.hljs-name,.hljs-selector-id,.hljs-selector-class{color:#0048ab}.hljs-meta,.hljs-subst,.hljs-symbol,.hljs-regexp,.hljs-attribute,.hljs-deletion,.hljs-variable,.hljs-template-variable,.hljs-link,.hljs-bullet{color:#4c81c9}.hljs-emphasis{font-style:italic}
\ No newline at end of file
diff --git a/server/cn/home/www/cdn/handsome/assets/css/features/code/vs.min.css b/server/cn/home/www/cdn/handsome/assets/css/features/code/vs.min.css
index 04b25fd..e041d8d 100644
--- a/server/cn/home/www/cdn/handsome/assets/css/features/code/vs.min.css
+++ b/server/cn/home/www/cdn/handsome/assets/css/features/code/vs.min.css
@@ -1 +1,42 @@
-function echo(stringA,stringB){var hello="你好";alert("hello world")}.hljs{display:block;overflow-x:auto;padding:.5em;color:black}.hljs-comment,.hljs-quote,.hljs-variable{color:#008000}.hljs-keyword,.hljs-selector-tag,.hljs-built_in,.hljs-name,.hljs-tag{color:#00f}.hljs-string,.hljs-title,.hljs-section,.hljs-attribute,.hljs-literal,.hljs-template-tag,.hljs-template-variable,.hljs-type,.hljs-addition{color:#a31515}.hljs-deletion,.hljs-selector-attr,.hljs-selector-pseudo,.hljs-meta{color:#2b91af}.hljs-doctag{color:#808080}.hljs-attr{color:#f00}.hljs-symbol,.hljs-bullet,.hljs-link{color:#00b0e8}.hljs-emphasis{font-style:italic}.hljs-strong{font-weight:bold}
\ No newline at end of file
+.hljs {
+	display: block;
+	overflow-x: auto;
+	padding: .5em;
+	color: #000
+}
+
+.hljs-comment,.hljs-quote,.hljs-variable {
+	color: green
+}
+
+.hljs-built_in,.hljs-keyword,.hljs-name,.hljs-selector-tag,.hljs-tag {
+	color: #00f
+}
+
+.hljs-addition,.hljs-attribute,.hljs-literal,.hljs-section,.hljs-string,.hljs-template-tag,.hljs-template-variable,.hljs-title,.hljs-type {
+	color: #a31515
+}
+
+.hljs-deletion,.hljs-meta,.hljs-selector-attr,.hljs-selector-pseudo {
+	color: #2b91af
+}
+
+.hljs-doctag {
+	color: grey
+}
+
+.hljs-attr {
+	color: red
+}
+
+.hljs-bullet,.hljs-link,.hljs-symbol {
+	color: #00b0e8
+}
+
+.hljs-emphasis {
+	font-style: italic
+}
+
+.hljs-strong {
+	font-weight: 700
+}